Game of the Bear is a homebrew platforming game for the Atari 2600. Trapped in a labyrinthine facility by mad scientist Dr. Wizardo, Ursulo the Bear must now find a way out and survive all sorts of weird hazards and enemies concocted by Dr. Wizardo himself. It's not as linear as you'd expect from a retro game, however, as Ursulo must find three keys to the exit doors out of the facility.
Induviel here helps Ursulo escape and stomp on the insane Dr. Wizardo in record time.
You can get the game here.