NeoMatrix

Corrected entry: Judge Doom is run over by a steam roller, flattening him in the process. He later inflates himself, which results in a pair of glass eyes popping out of his head and landing at his feet. Considering they were made of glass due to the sound they make when striking the floor, they should have been crushed when the steam roller rolled over his head and, by extension, his glass eyes. (01:28:51 - 01:29:56)

NeoMatrix

Correction: Given that Doom is a cartoon in a world where the laws of physics don't always seem to apply, this doesn't seem to be a mistake.

LorgSkyegon

Correction: 1. It's a cartoon; the rules of the "real world" don't apply. 2. It's not a plot hole. The plot of the movie isn't broken because this happens. Even if they were crushed, by cartoon rules, they could have reformed afterwards anyway.

There is one flaw in your argument. The glass eyes were not "toon-related"; they were live-action, thus "real." They should obey the laws of reality given their makeup.

NeoMatrix