I'm going to go with this definition as well.
1. Dragonball GT Final Bout. As a teen, the idea of a Dragon Ball Z fighting game was probably the coolest thing I could think of. There weren't any that had been made in English at this point, and playing a Japanese title required tweaking the innards of your Playstation and voiding its warranty. One of my friends looked up how to do it and there we were, playing a DBZ Fighting game. Queue extreme excitement. This game was awful. Among clunky fighting mechanics, it had "power battles" where you'd shoot an energy blast at your opponent and you had to furiously mash the "X" button as fast as you could and whoever pushed it the most won. Well, this kind of thing gets old really, really fast, especially when you can turn any energy blast shot at you into one of these "power battles". Against the computer, sometimes it required an inhuman amount of button presses that would literally wear out your arm. Crap game.
2. Cataclysm. Having been skeptical about it well before its release, I was very pleasantly surprised by all the cool stuff the beginning of Cata brought to the table. I found myself highly engaged and very entertained. Sadly, as the Xpac rolled on, mediocre tiers of content, not much reason to leave the cities, and horrid class and spec balance finally made me throw in the towel after 6 years of WoW. Never had I been so frustrated with WoW than during Cataclysm.
3. Yoshi Story. Yes, when I was a kid and saw this game in Nintendo Power I thought it was going to be really fun. This was the era of great platforming games like Mario 64/Banjo Kazooie/DK 64 which had been preceded by other great platforming games like Super Mario World/Super Mario World 2/Donkey Kong Country on the SNES. For some reason I thought I'd be able to spend as much time playing and completing this game as those, but was sadly disappointed. There was nothing to this game, and the only secret things I could unlock were a white and black Yoshi. Huge letdown, and a waste of my precious allowance.