The fish initially are dumb, but as time goes on they get "smarter" learning to avoid the roller when the paintbrush nears it, and develop strategies to trap the player between them.

A third character, appearing to be an animal, rolling tire, or invisible man depending on the level, may enter the maze and leave tracks that must be painted over in order for the board to be completed.

[6] ADK remade the game for the Neo Geo Pocket Color which was released worldwide by SNK under its original name Crush Roller in 1999.

[7] The game mechanics are largely the same as its arcade counterpart, though the level design was adapted to fit the smaller screen size.

It also fixed the bugs that cause music temporary stops when the roller died or crush enemy and eliminated corrupted sprites at left maze scoreboard when completed stage which are replaced by some hollow squares.