Do a platformer rogue-like with a sci-fi theme. Have the character take on the role of a bad-ass alien bounty hunter. Make his personality similar to Duke Nukem and Space Dandy. Kill hordes of alien lackeys and then take on the bounty target in the form of a boss fight. Then you get money and go back to your ship where you can choose to go back to Hub Station to get new equipment (essentially skills/stats in this game, and money you get from killing the lackeys and the bounty target is basically exp), accept new bounty contracts, and other stuff.
