Okay, so imagine Tetris, but instead of boring old blocks, you're stacking Sonic characters—Sonic, Tails, Knuckles—and they actually do stuff when you match them right. The pieces drop in these vertical triple stacks, and you can flip them around to line up combos. At first, I kept messing up because I'd panic and rotate Knuckles the wrong way, but once you get the hang of it, chaining clears feels pretty satisfying.

Power blocks mix things up—hit one at the right time and you'll wipe a whole chunk of the board. The controls are simple (left/right to move, up to flip), but the real trick is figuring out which character clears which rows fastest. Tails seems to work better for tight spots, but Sonic’s your guy for wide clears. Just don’t let the stack hit the top, or it’s game over.

It’s one of those Flash games that’s way more addictive than it has any right to be.