GAME FEATURES:- Story mode with unlimited continues & checkpoints!- AI team mates and/or local co-op.- Unlockable 'random mode' (chaos turned up to 11 here).- Perma-death (in random mode) - no continues allowed!- A boss rush mode (with a Crystal comet twist).- Unlockable spaceships / characters.- Unlockable power-ups (unlock more for your 'run' when killing bosses).- Multiple routes through story mode to reach the end.- Multiple