I-Ball 2 - Quest for the Past (UK) (1987) [a1] - Amstrad CPC - Puzzle, Action

After rescuing his friends, I, Ball decides to find out more about the history of his race by going down into the mines. The game consists of several of these mines, which occupy a single screen each. You start in one of four mines chosen at random and must collect the key in each mine and reach the exit, while avoiding the floating enemies.