Ok, so I had another idea for an arcade game.

You play as two characters, Mr. Icey (an ice cube) and Mr. Firey (a fireball). Mr. Icey is missing arms, and Mr. Firey is missing legs. They take turns being the player, so one turn you'll play as Mr. Icey, and the next you'll play with Mr. Firey. The levels don't scroll vertically, like in Super Mario Brothers, but you are allowed to backtrack. Anyways, they're both on a quest to the Grand Wizard to regain their lost limbs, and must use their elemental powers to overcome the many enemies on their path.

Anyways, because I can't focus on making two games at once (the other being the Tyrianesque game talked about here), I decided I'd let the public think about what game i'd make. So, people: What game should I pursue?