Sonic VR is a ROM hack of Sonic the Hedgehog 2 by ColinC10. It features a series of short virtual reality-styled levels where the goal is to get to the finish ring as fast as you can without dying. There are no power-ups, rings, or time limit to assist or hold back Sonic. The only thing that serves as a challenge are the Sonic physics mechanics, which are remarkably different from the physics in other platforming games made at the time.

marzojr here completes all 40 levels as fast as possible, exploiting bugs and quirks in the Sonic engine to clip through walls and not take damage from hitting certain hazards.

There are also encodes that attempt keep the camera focused on Sonic when he goes too far off-screen.