There is no such thing as a Pokemon that requires the Action Replay. Simply those that people are too lazy to get via Pokemon Events.
yea
you need a action replay
you need the action replay.
You can`t catch it in the wild you need an action replay
You can't catch mew,only is you have action replay,or hack. If you have action replay you need a code to find it.
To Catch Mewtwo You Need A Action Replay.
you need a action replay or a Pokemon event
you need action replay
you need to use a action replay to get it
You can catch Sinnoh Pokemon in Pokemon platinum, but you need to migrate and trade unless you have an action replay
NO you need action replay
You need the action replay, then you get the cheat to get the azure flute.
To Catch Lugia You'll Need A Action Replay.