You can actually beat Teenage Mutant Ninja Turtles‽ I thought it was kinda like Tetris or something, where it just goes on until you die (again and again) or the game crashes /s
I was always proud of my kid-self for almost defeating The Lion King on Sega. I was like two levels away, but always got stuck at the end of a lava-cavern level. Rocks would fall from the top and slowly murder you while you tried to find the exit in a room full of lava geysers.
Turns out, a slab of rock would eventually fall onto one of the geysers, and you were supposed to stand on it and get rocketed out of the level. I thought it would rocket you into the ceiling of the cave and kill you (I mean, it's a logical thought)... so I never tried.
I played it as an adult and I know I would've crushed those last levels as a kid. Trying to kill Scar would've been another issue (you have to throw him off the cliff) because I would've just kept trying to claw him to death... but I think I would've eventually done it, at least accidentally
So yeah, the exit to that lava level still pisses me off lol. Lions can't pass through solid matter to exit a cave, for fuck's sake!
Deadly Dick