Originally released in 2002 for PC, Mac and Linux, Mutant Storm is a twin-stick shoot 'em up. The developer PomPom made two sequels (Empire and Reloaded), and in 2012 the original Mutant Storm was rereleased for the iPad.
From the developer:
Mutant Storm progresses over 89 levels of psychedelic 3D arenas, that get ever more crowded with nasty beasties. This carnival of frenetic fun is showcased in a cutting edge graphics extravaganza.
Viewed from well above, you and your enemies can always be seen. Always be killed, and always be laughed at! There is no hiding. No tactics. No planning. No Net.
Your enemies created this world and they sure ain’t gonna help you out!
You like to play hard? Then the game gets harder. Feel like you’re doing well? … Enjoy it while it lasts!
Survive long enough, and you get rewarded with score multipliers, doubling your score. Making your enemies even angrier, and that bit more determined to kill you!
Lose a life and watch your multipliers tumble, and the beasties slow down and relax, safe in the knowledge that you are just a big softy really!!
After you conquer all 89 levels you’ll be awarded a ‘White Belt’. Progress to win all 8 belts until you possess the much coveted Mutant Storm ‘Black Belt’.
iPad Retina Enhanced 3d Graphics
Insane Arcade Action
60 FPS on all iPads
Psychedelic 3D visuals and effects
Game Center Leaderboards and Achievements
Adventure mode and tally mode
Compatible with all iPads!
Source: The Developer Website.