Warthog Launch (CLONE!!!)
You can create a pile of grenades by using a slider at the bottom of the screen. You can also position the grenades and the warthog by using sliders. The objective of the game is to kill all of the on-screen Engineers by using only one explosion to propel the warthog into them.
DAS GAME
A large slider on the bottom left of the screen controls the Warthog's position. 2 smaller sliders are in the center, one on top of the other. The top center slider toggles the position of the grenades, while the bottom slider changes the amount. There are also 2 buttons on the right. One to trigger an exlosion and revert to try again, and another to proceed to the next level.
To make it more of a 'clone', try replacing the warthog with maybe an HMMWV, and replacing the Engineers with... something else that flies... maybe helicopters? Also, for ease on the buttons, creativity with the touch controls would be great.