i was watching a nature documentary with my girlfriend, and it gave me an idea for a mini game--

the segment of the doco was on these goats with enormous horns; and true to form they battled each other with those horns.

the concept for the mini game is simple enough, you have to mash two keys on the keyboard to "build up power" for your next round of horn-locking...

or maybe it could be like a meter that swings, and you have to press your button on the 'sweet spot' of the target on the meter?