Raid

he hits harder every time. he also misses wider.

rob a coconut grove while its owner loses his temper, and steal in the gap his own swing leaves

The monkey goes wherever your thumb is, so there is nothing to work out before you start. The man who owns the grove is the whole game: every coconut you take winds him up another notch, and being wound up does two opposite things to him at once. He moves quicker, throws oftener and reaches higher - and at the same time his aim spreads, his swings go further than he meant, and the bigger the swing the longer he takes to get his feet back. So the run does not simply get harder as you score. It gets louder and looser, and the coconuts you take late are the ones you take while he is still recovering from a throw he put everything into.

Concepts: arousal, tradeoffs, anticipation.

An interactive you play with one thumb, on Wundr.