Here are some cheats and tips for the game Mega Man.
OZSKPZVK Infinite lives
AASPLAZA Start with 1 life
IASPLAZA Start with 6 lives
AASPLAZE Start with 9 lives
SZKZGZSA Infinite energy
TAXOIOGO Start with half energy
AVVXLPSZ No harm from any enemies, except super villains
TAOOYTGA Mega Man mega-jump
OXSLEEPV + AUSLOEAZ Always get maximum points for shooting super villains