Super Mario and Sonic

Grab rings, smash Goombas, and speed through zones as two icons collide in this fan-made platforming mashup.

Super Mario and Sonic is one of those unblocked fan games that shouldn't work, but somehow does. You get a side-scrolling platformer where two of gaming's most iconic rivals share the screen, and it leans into the odd-couple energy. I spent my first few runs just spamming jump to see if Sonic could bounce on Goombas the way Mario does—turns out the physics are more forgiving than you'd expect, which is exactly what makes it fun in a school-friendly browser tab. The levels pull from both universes: green pipes, loop-de-loops, floating platforms, and the occasional spike pit that punishes you for getting greedy with speed. Controls are simple—arrow keys or WASD to move and jump, touch buttons on mobile—but the challenge ramps up when you need to chain jumps across crumbling blocks while dodging buzz saws. One moment that got me: I picked Sonic, tried to blitz through a mushroom kingdom section, and immediately flew into a bottomless pit. Then I switched to Mario and took it slow, only to get clipped by a spinning shell. The game rewards learning each character's rhythm, not just button mashing. Don't expect a polished official crossover, but for a quick platforming fix during lunch, it does the job. The sprite work is retro enough to feel nostalgic, and the collision detection is forgiving in a way that keeps rage-quits rare.

Computer controls: Use the arrow keys or the WASD keys to move and jump. Touch controls: Touch the screen buttons to move and jump.

Tap jump a beat earlier than feels natural when moving fast—Sonic slides before he leaps. Don't trust loop-de-loops; slow down on the exit or you'll overshoot the next platform. Hidden blocks often sit just above eye level, so jump at every suspicious ceiling tile. On mobile, use the touch buttons with your thumbs for quick direction changes mid-air. Mario's jump arc is tighter—use him for precision sections, not open sprints. Collect rings and coins whenever you can; they act as a buffer against one-hit deaths.

Q: Is Super Mario and Sonic free? A: Yes, the game is completely free to play in any browser. Q: Can I play Super Mario and Sonic on mobile? A: Absolutely — touch controls pop up automatically when you load it on a phone or tablet. Q: Do I need to download anything? A: No download or install is required. Just open the page and start playing. Q: Does Super Mario and Sonic work at school? A: It's an unblocked game, so it usually bypasses school filters, but your network may vary. Q: What are the controls? A: Use arrow keys or WASD to move and jump. On touchscreens, tap the on-screen buttons. Q: Is there a save system? A: No, progress isn't saved between sessions—it's a quick-play platformer.