Need mini-game ideas

[pr0-assasin]

I need a mini-game idea that I can expand upon into makin an actual game. I'm using roc editor

 

[X-maul]

I abandonned a game long time ago, that you can take over if you like - the game is a capture the flag game, and between the 2 bases there is cars driving which will kill you if you get struck by them, so the thing you need to do, is to run over the road - and remember to look at both right and left side of the road before crossing and go get the enemies flag - you are also able to kill eachother with various items, such as rockets that can push your enemies into the cars, and so on.