Computer games
Rock'n'Roll
Rock 'n' Roll is an action-oriented puzzle game with 32 levels (plus a secret bonus level). The player controls a ball, which is steered with the mouse on the Amiga or the joystick on the Commodore 64, and his job is to reach the exit on each level. The game was published in 1989 by Rainbow Arts.
Impossible triangle is depicted on a poster of the game.