All I knew from my perspective was that this teacher was angry at the existence of those games and the IT guy never removed them. To be that tells me school admin either allowed it or simply didn’t care.

The computers weren’t really that locked down or secure from user tampering. Some idiots would even install malware all the time on them like Bonzi Buddy. The IT guy didn’t strike me as the hard working type and would only re-image a computer if it was no longer functioning.