Skippy B. Coyote

I feel your pain. I had the same problem playing Doom or any other FPS for that matter.

It's weird because I've played a ton of first-person shooters over the years, including ones where your character bobs up and down a lot as they walk, and none of those ever bothered me at all. I think it was just the way the horizon was constantly tilting and spinning in After Burner but something about that game really made me feel like I was going to toss my cookies if I kept playing any longer, which was a shame because aside from the nausea I was actually enjoying playing it.

Back when the original Tomb Raider first came out I'd always get a severe case of vertigo when looking down from a high place. The only other games that have done that to me have been the Dark Souls series.