Click space. I used makey makey, the built in event when button clicked, and a conditional when key clicked. They all do different things. The conditional one thinks you click the button thousands of times with a small press (you should probably have a sleep timer or whatever it is called to limit the amount of presses it accept). The when button clicked starts out really slow, at first accepting one input even if you hold the button down. Then it speeds up and goes faster. I really see no purpose for it, and will cringe if you use it (maybe you could use it if you were lazy about momentum, but its not an efficient way to do it by a long shot). The makey makey block is consistent in the number of presses it makes while holding the button. It has rejected input if you do a really light quick tap, but it is fine besides.