spindown: Yeah, I agree. Superpowers were fun for a while in SR3, but if they are available throughout the entire game it makes most of the traditional mechanics kind of pointless.
cw8: Yeah, SR3 was amazingly fun until I got to max level and became invulnerable to everything then it got became somewhat meaningless. Luckily by then it was near the end, so everything was still good.
Yes, the ability to buy cheat codes in SR3 was pretty strange. It's nice to be able to upgrade your character in the beginning, but the game just becomes easier and easier the longer you play - until you become practically invincible, at which point it's no fun to play anymore. I'm afraid that all of SR4 might be like that because of the superpowers.