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Catrap
North American Game Boy cover art
DevelopersSharp MZ
Yutaka Isokawa
Game Boy
ASK Kodansha
PublishersSharp MZ
Softbank
Game Boy
DesignerYutaka Isokawa
ComposerMasao Asakawa
PlatformsSharp MZ-700, Game Boy
ReleaseSharp MZ-700
1985
Game Boy
  • JP: June 1, 1990
  • NA: October 1990[1]
GenrePuzzle-platform
ModeSingle-player

Catrap, known as Pitman in Japan, is a 1985 puzzle-platform game developed by Yutaka Isokawa for the Sharp MZ-700 computer. A port to the Game Boy developed by ASK Kodansha was released in Japan in June 1990 and North America in October 1990 by Asmik. ASK retained the rights to the game after splitting from Kodansha, re-releasing the game on the Nintendo 3DS Virtual Console in October 2011.

The word Catrap refers to the frequent number of times the player is trapped and needs to reverse their movements and the two anthropomorphic cats the player must maneuver to advance through the levels.

Destructoid credits the game with using a time-rewind mechanic before games like Blinx, Prince of Persia: The Sands of Time, and Braid.[2]

Gameplay

[edit]

Catrap is a puzzle game. The player directs the avatar, an anthropomorphic cat, to navigate a room while clearing obstacles and kicking monsters and ghosts off the screen. Once the player has knocked all of the enemies off the screen, they advance to the next level. Advancement grows difficult for the player as increasingly intricate obstacles are presented to complicate the process of overcoming all of the monsters and ghosts. The game encourages trial and error. A player may try one combination of manoeuvres by moving the obstacle in one direction, then they may find themselves trapped. The player can hit the 'A'-button to reverse their movements and try again in a different way until they find the solution that enables them to access all of the enemies and knock them off the screen. Trial and error make up a large portion of the game. Players can also create their own mazes.

There are 100 levels for the player to clear, each one more difficult than the last with more room for error and typically take longer to complete. The first level involves no obstacles with one monster on the opposite side of the screen to knock off; the last level involves a blockade of boulders and a conundrum of ladders for the player to move and navigate to clear several floating ghosts, the most difficult level with the smallest margin for error.

Development and release

[edit]

The game concept was originally created in 1985 on a MZ-700 home computer by Yutaka Isokawa. The BASIC listing of the game was published in the August 1985 issue of the magazine "Oh!MZ Publications" as type-in program.[3][4] The popularity of the game caused it to be picked up for Game Boy conversion in 1990. In the Game Boy version there is a nod to the MZ-700 version, the layout of round 77 is a big M and Z. In 2004 it was released for I-mode mobile phones as Pitmania and Pitmania 2, with graphics more similar to the original MZ700 game. Pitmania 1 Infinite was released in 2007, which had improved and more colorful graphics. A version was released for the Nintendo 3DS in the 3DS eShop in October 2011.[5] In 2012 the game community restored a faithful as possible Sharp MZ-700 version from the available source code variants.[6]

Reception

[edit]

Catrap holds a rating of 8/10 on Nintendo Life[8] and 5/5 on Arcade Spot.[9]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Catrap

View on Grokipedia
from Grokipedia
Catrap is a puzzle-platform video game originally developed by Yutaka Isokawa for the Sharp MZ-700 computer in 1985, where it was released in Japan as Pitman. A remake was published by Asmik for the Nintendo Game Boy in 1990 as Pitman in Japan and Catrap internationally. In the game, players control anthropomorphic cat characters—Catboy and Catgirl—who navigate 100 single-screen puzzle rooms within an underground labyrinth, pushing blocks into pits, digging through earth, climbing ladders, and smashing into enemies to clear each stage. The plot follows the sibling duo, who are transformed into cats after entering a haunted house and subsequently trapped in the labyrinth, requiring them to eliminate all creatures in each room to progress toward escape. Gameplay emphasizes strategic puzzle-solving with action elements, including a distinctive rewind mechanic that allows players to undo recent moves, making it forgiving for trial-and-error approaches. From level 30 onward, stages involve controlling both characters simultaneously, adding complexity to block manipulation and enemy encounters. Notable features include a built-in level editor that enables players to design and save custom mazes using passwords, enhancing replayability beyond the core 100 levels. Catrap was re-released on the Nintendo 3DS Virtual Console in 2011, preserving its original Game Boy mechanics for modern audiences. The game's origins trace back to a BASIC program published in the Japanese magazine Oh!MZ in 1985, with the Game Boy version expanding significantly on the prototype by incorporating new stages and refined controls.

Gameplay

Core Mechanics

In Catrap, players control one or both of two cat-like protagonists, Catboy and Catgirl, who navigate underground labyrinth rooms filled with obstacles and enemies. The game begins with single-character control for the initial levels, but from stage 30 onward, players must switch between the two using the Select button to solve puzzles collaboratively, positioning each character strategically to access areas or manipulate the environment. Core abilities revolve around environmental interaction and combat. Characters can dig through soft dirt blocks by walking into them, creating paths or causing collapses to defeat enemies indirectly. To directly eliminate foes, players bump into them from the sides or above, triggering a defeat animation without taking damage—similar to stomping in platformers, though no dedicated jump button exists; movement relies on the directional pad for walking and crashing. Additionally, pushable blocks can be maneuvered to bridge gaps, support structures, or crush enemies when dropped. A key is the rewind , activated by holding the A to step back through recent actions or fully to the room's start, with no usage limits to encourage experimentation. The B allows redoing moves post-rewind, facilitating trial-and-error puzzle-solving without penalties beyond time. This predates similar features in later titles and is essential for correcting missteps in tight spaces. Enemies vary in type and behavior, including stationary mummies, walking monsters like Frankensteins, and floating ghosts that remain airborne even if their platforms are removed. Most exhibit predictable patterns, such as patrolling straight lines or hovering in fixed positions, requiring players to time approaches carefully to avoid hazards like pitfalls or collapsing terrain while bashing them. Some enemies support blocks, leading to chain reactions if defeated prematurely. To complete a level, players must defeat all enemies in the room while avoiding death from falls or traps, after which an exit door appears for advancement. Password saves track progress across its 100 rooms. Death restarts the current room, but the rewind mitigates frustration from fatal errors.

Level Design and Progression

Catrap consists of 100 single-screen puzzle-platform levels, each composed of diggable dirt, indestructible rock, movable blocks, ladders, and pits. Players must eliminate all enemies by bashing them from the left or right while standing on solid ground, with levels 1 through 99 accessible in any order via a password system that tracks completed stages and allows resuming progress. The 100th level unlocks exclusively after solving the prior 99, serving as a capstone challenge that integrates prior mechanics. The game's progression introduces concepts gradually, beginning with the initial 15 levels as accessible tutorials that familiarize players with basic enemy elimination and environmental interaction. Difficulty escalates thereafter through increasingly intricate layouts requiring multi-step planning, such as strategically digging tunnels in dirt to create paths or positioning blocks to access elevated foes. From level 30 onward, select stages demand switching between Catboy and Catgirl using the Select button, necessitating coordinated actions like one character supporting the other via block placement or ladder use. There are no time limits across any level, prioritizing deliberate puzzle-solving and the rewind mechanic—which undoes actions step-by-step back to the level's start—over rapid execution. Enemy types diversify as levels advance, with early stages featuring simple walking mummies that patrol horizontal platforms, later incorporating Frankenstein monsters that plummet straight down when deprived of support beneath them, and ghosts that float vertically along fixed paths. These behaviors compel players to anticipate movements, such as clearing a path for a ghost to rise into bashing range or undermining platforms to drop a Frankenstein monster for access. Environmental hazards include bottomless pits that claim lives upon falling and precarious block stacks that can collapse if mishandled, adding risk to navigation without instant-death elements like spikes. Three bonus stages, accessible via specific passwords detailed in the Japanese manual (with corrections for the U.S. version published in Nintendo Power), offer extra lives upon completion and introduce variations on core puzzle elements. Level variety spans straightforward setups focused on direct enemy clearances to labyrinthine mazes that blend all mechanics, such as dual-character coordination amid multiple enemy behaviors and hazard avoidance. Later levels, particularly 90 through 99, emphasize dual-character control exclusively, heightening complexity with simultaneous positioning demands. The endgame culminates in levels that combine every introduced enemy type, environmental feature, and strategic depth, often requiring dozens of precise moves and extensive rewinds to solve, while the non-linear access to earlier stages encourages replay for optimization or password sharing.

Development

Origins as Pitman

Pitman originated as a hobbyist programming project by Japanese developer Yutaka Isokawa, who created the game in 1985 using Hudson's HuBASIC interpreter on the Sharp MZ-700 home computer. The MZ-700, released in 1982, was an entry-level 8-bit machine popular among Japanese hobbyists for its accessibility and BASIC programming support, which allowed users to easily type in and run code from magazines. The game was first published as a type-in BASIC listing in the August 1985 issue of the Japanese magazine Oh!MZ, targeted at MZ-series computer enthusiasts, with an updated version titled Pitman Plus appearing in the November issue of the same year. This publication format was common in the era's hobbyist culture, enabling readers to manually input the code to play the game themselves, fostering a community of amateur programmers and players. Conceptually, Pitman was a simple puzzle game featuring an archaeological explorer protagonist navigating underground tombs filled with soft soil, blocks, ladders, and enemies such as mummies and ghosts. Players dug tunnels through the soil, pushed blocks to create bridges or stairs, and climbed to touch all enemies on each single-screen level, causing them to disappear and clearing the stage upon completion; the original included around 50 levels without advanced features like rewinding actions. This design emphasized straightforward mechanics suited to the magazine's audience, drawing on the era's interest in accessible, logic-based challenges rather than complex narratives or graphics. Due to the MZ-700's hardware limitations, including its 40x25 text mode with a fixed 512-character set and no dedicated graphics mode, Pitman relied on basic text-based visuals using ASCII-like symbols for terrain, the explorer, and enemies, paired with minimal sound effects generated via BASIC commands. These constraints reflected the hobbyist programming ethos of the mid-1980s in Japan, where developers like Isokawa prioritized functionality and creativity within modest resources, often sharing work through print media to reach fellow enthusiasts. The game's later adaptation for the Game Boy expanded its scope significantly.

Game Boy Adaptation

The Game Boy adaptation of Catrap, developed by Asmik with Yutaka Isokawa serving as designer and released in Japan as Pitman, represented a significant evolution from Yutaka Isokawa's original 1985 Sharp MZ-700 version, expanding the game from 50 to 100 levels with most redesigned from scratch while preserving the core digging and puzzle-solving mechanics but introducing greater strategic depth through varied enemy behaviors and environmental interactions. Asmik professionalized the amateur BASIC code originally published as a listing in the Japanese magazine Oh! MZ, acquiring the rights through this publication to create a cartridge-based title optimized for the handheld's hardware. Key innovations in the adaptation included the introduction of a rewind button—one of the earliest implementations of such a feature in video games—allowing players to undo moves and reverse time within a level to correct mistakes, which was activated by holding the A button to reverse recent moves, complemented by a forward function using the B button to resume play. Additionally, dual-character control was added starting from level 30, enabling players to switch between Catboy and Catgirl protagonists using the Select button for cooperative puzzle elements, such as simultaneous block manipulation or enemy evasion that required coordinated actions. Graphics were enhanced to leverage the Game Boy's monochrome palette, featuring smoother animations for characters and enemies compared to the MZ-700's static sprites, while a password system was implemented to save progress and share custom levels created via an in-game editor. The development process addressed the original MZ-700's hardware constraints, such as limited processing power and color display, by expanding enemy AI to include more dynamic pursuit patterns and trap responses, thereby increasing level complexity without deviating from the single-screen format ideal for portable play. Sound effects were tailored to the Game Boy's audio capabilities, providing distinct chimes for actions like digging and rewinding to enhance feedback in the absence of color. These changes transformed the modest home computer prototype into a polished puzzle-platformer, emphasizing replayability through the editor and passwords while maintaining the essence of Isokawa's digging concept.

Release

Platforms and Initial Launch

The origins of Catrap trace back to its initial release as Pitman on the Sharp MZ-700 home computer in Japan in 1985. The game was distributed exclusively as a type-in program published in the August issue of the hobbyist magazine Oh!MZ, allowing users to enter the BASIC code manually into their systems; no commercial cartridge or packaged version was produced, targeting computer enthusiasts familiar with such listings. The Game Boy adaptation marked the game's commercial debut, launching on June 1, 1990, in Japan under the title Pitman and developed and published by Asmik (also credited as Ask Kodansha in some documentation). It was released in a standard gray Game Boy cartridge format, compatible with the handheld console. The North American launch followed in September 1990, retitled Catrap and published by Asmik Corporation of America, with distribution handled directly by the company. At launch, the game remained exclusive to the original Sharp MZ-700 series (including compatible models like MZ-80K/800/1500) and the Nintendo Game Boy, with no ports to other contemporary platforms such as the Famicom or MSX.

Localization and Re-releases

The Japanese version of the game, released as Pitman, was renamed Catrap for English-language markets. This localization involved minor adjustments, such as changes to the title screen and credits, while the core gameplay and majority of levels remained identical between versions, with only Round 60 exhibiting slight differences in layout. In North American marketing materials, Catrap was promoted as a game of "mindbending intrigue and action," highlighting its unique rewind mechanic as a key puzzle-solving tool. Due to the game's minimal text and lack of voice acting or extensive narrative, no significant dubbing or translation efforts were required beyond the basic menu and interface updates. The Game Boy version of Catrap saw digital re-releases on the Nintendo 3DS Virtual Console in 2011, with launches in Japan on July 27, North America on October 13, and Europe on October 6, made available worldwide through the Nintendo eShop. These ports included the standard Virtual Console enhancements, such as suspend points for mid-game saving, which were not present in the original cartridge release. No official ports have been released for mobile devices or other modern consoles beyond these Nintendo platforms. Preservation of the original 1985 Sharp MZ-700 version, released as Pitman, has been supported by the public availability of its BASIC source code since its initial magazine publication, enabling fan recreations, ROM hacks, and English translations shared online from the early 2000s.

Reception

Contemporary Reviews

Upon release in Japan as Pitman in 1990, the game received coverage in prominent magazines, though it was somewhat limited given its puzzle genre focus. Famitsu awarded it a score of 24 out of 40, reflecting a mixed reception that acknowledged its innovative mechanics amid average production values. Similarly, Family Computer Magazine rated it 16.33 out of 30, with subcategory scores highlighting moderate operability (2.76) and originality (2.76), but lower marks for music (2.57) and overall enthusiasm (2.59). In the United States, where it launched as Catrap in September 1990, contemporary press was sparse, underscoring the title's niche status among Game Boy releases. Nintendo Power featured a brief preview in its September/October 1990 issue (Issue 16), introducing the game's rewind feature and block-pushing puzzles but offering no numerical score. No full reviews appeared in major outlets like or during 1990-1991, contributing to its under-the-radar profile. Critics commonly praised the fair difficulty progression and high replayability through 100 puzzle stages and a level editor, while noting drawbacks such as repetitive enemy behaviors and the absence of multiplayer options. The game's modest commercial performance, overshadowed by blockbuster titles like Tetris, limited its visibility, with no official sales figures exceeding broader Game Boy market estimates for lesser-known puzzles.

Retrospective Assessment

Upon its 2011 re-release on the Nintendo 3DS Virtual Console, Catrap received positive retrospective coverage that highlighted its innovative features and overlooked quality. IGN awarded it an 8.5 out of 10, praising the rewind mechanic for enabling players to correct mistakes without restarting levels, thereby making complex puzzles more approachable and engaging. Nintendo Life gave it an 8 out of 10, calling it a "hidden gem" of portable puzzling due to its 100 levels, level editor, and addictive grid-based challenges suited for on-the-go play. Later analyses further solidified Catrap's reputation among retro enthusiasts. In a 2010 retrospective, Hardcore Gaming 101 described it as "one of the finest GB games you've probably never played," lauding the escalating level design that transforms simple block-pushing into intricate, chronologically layered puzzles requiring precise sequencing. User-driven sites like Backloggd reflect a similar appreciation, with an average rating of 3.5 out of 5 based on community reviews that commend the balance of escalating challenges and rewarding problem-solving. The game's legacy endures through its pioneering rewind function, noted as an early implementation that allows error-free experimentation in time-sensitive mechanics. It has cultivated a cult following via emulation communities and YouTube longplays, where players showcase solutions to its 100 labyrinths, preserving its appeal for modern audiences seeking pure, unadorned puzzle experiences. In hindsight, Catrap faces some criticisms for its lack of graphical or auditory updates in re-releases, which can feel simplistic compared to contemporary titles. Nonetheless, these elements are often valued for emphasizing uncluttered focus on puzzle logic, free from modern distractions like microtransactions, reinforcing its status as a timeless example of dedicated design.

References

  1. http://www.hardcoregaming101.net/catrap/catrap.htm
  2. https://www.nintendo.com/en-gb/Games/Game-Boy/CATRAP-275539.html
  3. https://retroxp.substack.com/p/retro-spotlight-catrap
  4. https://www.destructoid.com/why-catrap-is-the-coolest-puzzle-game-youve-never-played/
  5. https://www.cubed3.com/games/reviews/game-boy/catrap
  6. http://www.hardcoregaming101.net/catrap/catrap-old.htm
  7. https://www.videogamemanual.com/gameboy/Catrap%20(USA).pdf
  8. https://gamefaqs.gamespot.com/gameboy/585661-catrap/faqs/28537
  9. https://www.gamedeveloper.com/programming/basic-s-50th-anniversary-draws-near
  10. https://www.mobygames.com/game/74578/pitman/trivia/
  11. http://blog.hardcoregaming101.net/2011/08/who-framed-created-pitman.html
  12. https://www.mobygames.com/game/35025/catrap/
  13. https://gamefaqs.gamespot.com/gameboy/585661-catrap/cheats
  14. https://www.youtube.com/watch?v=KxdtdwpD9Qo
  15. https://tcrf.net/Catrap
  16. https://github.com/mrcook/pitman-BASIC
  17. https://www.nintendolife.com/games/gameboy/catrap
  18. https://www.pricecharting.com/game/gameboy/catrap
  19. https://www.game-boy-database.com/game-PMA-3755-JPN.html
  20. https://hg101.proboards.com/thread/7485/catrap-aka-pitman?page=2
  21. https://niwanetwork.org/wiki/Restore_Point
  22. https://www.reddit.com/r/retrogamingmagazines/comments/1447us0/catrap_game_boy_preview_from_nintendo_power_issue/
  23. https://www.ign.com/articles/2011/10/14/catrap-review
  24. https://www.nintendolife.com/reviews/2011/10/catrap_3dsvc
  25. https://backloggd.com/games/catrap/
  26. https://www.digitallydownloaded.net/2011/10/review-catrap-3ds-virtual-console.html
  27. https://www.youtube.com/watch?v=FfV4MnGfiA4
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