Play Sonic Blox Online
Blocks drop like Tetris, but Knuckles punches extra rows when you clear two lines—then Robotnik randomly blows stuff up with missiles while chiptune Sonic tunes play.
Note: Right click and select full-screen for best experience
So Sonic Blox is basically Tetris with a Sonic skin, but it’s got a few fun twists. The blocks drop like normal, but if you clear two lines at once, Knuckles just punches out an extra row for you—which feels weirdly satisfying. And sometimes Dr. Robotnik shows up to blast random rows with missiles, which is either helpful or totally ruins your setup, depending on how lucky you are.
It’s simple, but the little Sonic-themed surprises keep it from feeling like just another Tetris clone. The music’s got that classic chiptune vibe too. Definitely one of the better Flash-era time-killers if you’re into retro Sonic stuff.
