A Bed Of Nails : Don't tap a different color button.
Invaders are coming our world. We need to beat them.
All we can do is to stab invaders. Tap a button whose color is the color of invaders.
2 type of mode:
1.50 Tap mode: Tap a button 50 times as much as possible.
2.30 Sec mode: Tap a button as much as possible in 30 seconds.