Finally settled on a concept

It took a good 40 minutes of bouncing ideas off of people, but I think I’ve got something that is simple enough to make and interesting enough to not be stupid. The player will control a fox in an attempt to eat rabbits. After a certain amount of time, the generation ends and the player respawns either with a bigger and slower fox if s/he ate enough rabbits in the time allotted, or a smaller and faster fox if s/he didn’t. And the goal is, obviously, to make the fox as fat as possible.