This is the one-level trial version of Caverns of Mimas.
Caverns of Mimas is the first in a series of minigames You've been locked away. Can't really remember how long or why any longer. No one ever comes down here. Why would someone leave an unsupervised spaceship? You'd be stupid not to take this chance. Time to leave.... You steer a spaceship trapped on the moon Mimas and need to find your way to the exit. Collect all the orb-keys needed to open the caverns exit. Pick up different kinds of ammunition along the way to ease your journey. Avoid enemies or intentionally collide and hope your ship can take more damage than theirs! Figure out how to get out of the cavern The aim of the game is to complete all 25 levels as flawlessly as possible.