Paper Mario World is one of those classic Flash platformers that just feels right—simple controls, bright colors, and that satisfying thwack when you smack a Goomba with Mario’s hammer. You’ve got two ways to take out enemies: jump on ‘em like usual, or swing the hammer with the spacebar (which honestly feels way more satisfying).

The levels are bite-sized, so you can knock out a few in minutes, but clearing a stage without taking damage gets you a password for some extra content. It’s not super deep, but there’s something weirdly addictive about bouncing between platforms and timing those hammer swings just right. The arrow keys handle movement, and that’s really all you need—no fuss, just classic Mario action with a paper-thin twist.