Mario Forever: SMW Edition is a ROM hack of Super Mario World that ports over the PC fan game Mario Forever to the SNES. Aside from retaining the physics of Super Mario World instead of trying to replicate the original Macromedia Fusion-built physics, the ROM hack is basically faithful to version 4.0 of the original fan game, including all the levels from the original, as well as a new secret world.
In this run, MrTASer accesses the Human Laboratory World, a secret world that is accessible from the hub, and completes every level in it in record time.