I figured there might be some interest for this here. I'm making a simple 2D game loosely based on the combat in DBZ.

You control a very tiny and fast square. It can fly / teleport and shoot energy attacks. I'm the yellow dude in this video. The circle around me is how much energy I have. Flying, teleporting, and energy attacks drain energy. Energy automatically regenerates after not using any for a short period of time. Energy regenerates 2 times faster if you're (more or less) stationary.

If you fly into the opponent square, a melee collision happens, and the loser gets damaged and knocked back. The winner is determined by whoever was moving faster in the opponents direction. It's all about momentum.

If anyone has any ideas on a name for this thing, I'm all ears.