Re-act!

The typical human Reaction Time is approximately 150 to 300 milliseconds (or 0.15 to 0.30 seconds). This is a simple game that will measure your average reaction time tapping on the circles that randomly spawn on the screen. - 3 levels of difficulty: Easy, Normal and Hard- Bonus points per hit combos- Leaderboards Warning: Most people won't be able to play it on Hard, only a all part of the population are quick enough do well.Are you Easy, Normal or Hard?