In the reaction game Flip Cube, you have to dodge the metal spikes with your cube. There's a line running through the middle of the screen, and sharp spikes will appear on either side of that line. Make the block zip down the line and slip past all the spikes by flipping to the other side. The spikes will crowd together as you approach them, which might throw you off at first, but soon enough you'll figure out how to time your cube flips just right. Keep going!