not really any at all, unless you count glitches as cheats, which there aren't many either.
sry, but in Pokemon red blue and yellow, you can catch mew through a glitch with no game shark
its impossible without gameshark or action replay.
There are manyif you have an action replay device.
noo
you can't do that you need a action replay or R4 if you want cheats. or.... you could probably use the events to get legendaries.but i know you can't use cheats without a action replay
cheatplanet.com
you don't
No
No.
no cheats without action replay but if you want other amazing cheat codes check out www.cheatcc.com
there are none
no
NO!