You control Flint, this little dude who just keeps jumping upward—grabbing ledges, dodging gaps, and trying not to plummet back to the start. The higher you go, the faster it gets, and before long you're white-knuckling every tap because one wrong move means watching Flint take the world's shortest skydive.

It's simple but weirdly tense—like, you know you'll mess up eventually, but you keep swearing "just one more try" every time you fall. The controls are tight, though, so when you wipe out, it's always your fault. My high score's 427. Bet you can't beat it.