The Amiga version of Putty Squad, although left unpublished until December 2013, was completely developed in 1994 to the point of demo versions being issued to magazines for release on cover disks, and Amiga magazines were also sent full review copies of Putty Squad, for which it received critical success.

[7] Amiga Power awarded 91%, highlighting the varied level shapes, masterful animation, influence from the Mario video games (using a stunned enemy as a projectile weapon, secret doors, items hidden in blocks) and consistent game logic.

[9] This critical success, but lack of a published version, has made Putty Squad one of the most sought-after Amiga titles before its release in December 2013.

[2] The Sega Mega Drive version was reportedly completed in 1995 and reviewed in several European magazines which were sent full review copies, like Spanish Hobby Consolas (#45, June 1995)[10] and German GAMERS (August 1995 issue),[11] but the game remained unpublished due to Ocean's diminishing support of the console and lack of interest from retailers.

The PC version was improved in several ways, including CG introductory cutscenes prior to the levels, but due to lack of interest from publishers, even though the game was finished, it was never released by the developers.

[15] The game was released worldwide via Nintendo eShop in November 2017, whilst physical retail copies launched only in Europe on 1 December.