[Fathom Zero]

Moving parts.

Period.

The more complicated the machine, the more opportunities for destruction. And that's not up for debate, it's a goddamn law of physics or thermodynamics. Probably the latter, what with transfer of energy and the constant friction.

Cart based things have never ever screwed up on me. If anything, it was a problem with the game. Consoles with disc drives have always given me trouble, except for the original Playstation, which always worked beautifully for me.