Found a fine mini game:Star Sweeper
I brought this one yesterday, it looks pretty simple, but I like simple games, so I spent 1 buck on it.
You control a space fighter to destroy the meteorite, you got 2 weapons, Machine gun and missile, the meteorite will keep showing up, just try get high scores. So far my best record is 152127.
Well, I got say it desn't have much contents, just one level plus a fine game play. But I like it, doesn't cost me much energy to think, just reaction, So I can play it in subway or office.
Anyway, you can get it from the App Store if you like simple games