I think the reason I didn't care for the episode was it wasn't like the NES Accessories, where he actually TALKED about said accessories, or the Bugs Bunny Crazy Castle episode where, despite all the fighting/destruction, he still took the time to talk about each game, even if most of them were just more of the same.
It could've been a funny blend of the two episodes mentioned above but with Genesis Accessories, but it was more focused on "let's just do slapstick using this stuff sometimes" than "let's talk about this stuff."