The furthest I ever got in TMNT was Shredder. After a few seconds, he would turn whoever I was using back into a baby turtle. Repeat once or twice more, depending on who I had left, game over. So very annoying, considering there was no save feature and it took a couple hours to get there
I held every title in the first Smackdown, to no noticable effect. I rented Smackdown 2, but got so incredibly frustrated with the load times and the fact that you couldn't just instantly simulate CPU vs. CPU matches that I barely played it.
Actually, there's this new game out, called "Eternal Darkness" for GameCube and it rules all. It's Resident Evil-ish type of game, but you basically unravel the story of this book called the "Tome of Darkness" and play as 12 different characters throughout history.
Also, there's this thing that's a sanity meter, for how scared your character gets, and the more it drops, the more the game screws with you. It does things like make your characters head fall off, turn the screen upside down, turns the volume down all the way, stops the game and asks that you put in disc 2 (there is no disc 2) and stuff like that. All in all, it's a pretty cool game and it just came out. So, if you're looking for something new, or the next big thing, check out Eternal Darkness for Gamecube.
Wanna' know what I'm all about? In the words of Billy Gunn, "Check out mah' SIG!"
...wow. I think I've beaten every Mario and Sonic game(real ones, not like spinoffs and shit) on the consoles. Except Sonic Adventure 2, and that's only because it sucked so hard that I couldn't stand to play it anymore.