I guess I found the game I'm good at, because I actually had to quit on purpose after getting into a positive feedback loop of ever-increasing charge. This game is sooo much fun!
If you used a HUD style UI for the score/battery figures, then all you need to do is add game content (more varied map layouts, enemy types) to have something I would pay money for. The graphics, music, and sfx all create a vibe I find very comfortable in an after-work arcade game.
Also, as a super frivolous feature request: please have random commentary emoticon speech bubbles from audience members when cool stuff happens, I kept hoping that would happen.
This was me at 100 charge then shortly thereafter deciding to purposefully click all my charge out so I could try other games.
