1) Yes.
2) Only game in the Fallout series I've ever been interested in, but never find it at the right price.
3) Fun characters and all, but not my type of game, which is funny given I own Um Jammer Lammy (although not for long).
4) No. I do own Silent Hill 2, which I got in a PS2 Slim bundle years ago, but I don't particularly care for it.
5) Yes. Owned it twice, actually; I had the Greatest Hits version, but replaced it with the Black Label.
I played and recommend getting this one also if you have not already (edit) it has terrible reviews online
The reason Ultimate Battle 22 is so disliked is because the US release is worse than inferior. Essentially animations were cut and the controls are garbage. Just so you have an idea, I played this at a friend's house eons ago and vividly remember telling him we should play Final Bout instead, which is quite possibly one of the worst Dragon Ball games ever.