Yeh Chip and Dale's Rescue Rangers is about one of the only NES games I can beat without the help of Game Genie, hee hee. Ugh, I hate those damn bees in Ma's Diner and the house level. Also those stupid bears that throw the green orbs, kill those suckers! And those kangaroos that take like 2 or 3 hits to die, jeez.
I also have Ducktales, I can't beat it on NES, although I can for Gameboy, it's pretty fun.
Didn't Capcom also make Mickey Mousecapade? Minnie is so dumb, she always falls in the water and pits, but she's good for beating the bosses that throw enormous amounts of junk at you, heh heh.