4. Mega Man 3
Cheat: Super Jump & Invincibility
Mega Man was not the highest or longest jumper during his 8-bit adventures, but you can change that with this cheat. If you want Mega Man with a super jump, all you have to do is press Right on the second controller. This will even allow him to walk across the bottom of pits. Heck, let's throw in the invincibility cheat: Jump into a pit, then press Right on the second controller. Have the energy bar go to black and jump out of the pit. You'll remain invincible as long as you do not get any energy. Oh, and Mega Man's arm cannon won't work but weapons he gets from bosses will.