These mystery screenshots from One Step Beyond were originally found by mailman on the EAB forum. They were discovered on the second disk but don't appear in the game at all.

I contacted the programmer of One Step Beyond, Nick Tuckett, and asked him about these:

"Those pictures on the disc aren’t real games, if I remember correctly – I think they are backgrounds for some of the cutscenes (which were video game themed). It is possible that they weren’t used in the final release."