Just click on your preferred time from 5, 10, to 20 seconds on the right. Then start pressing the Space bar as much as possible within that time, it is that easy! Enjoy! WARNING! When you click the flag, it erases all scores! This does not use cloud so only use the RETRY button if you want to compare your score, note that if you leave the page, those scores will be erased.
I got the idea from the real game here: http://www.zimm-co.com/PressTheSpaceBar/pressthespacebar2000.html
