in Pokemon lake you can catch metwo after beating gym leaders in lakeslivile research lab
without cheats you would have to migrate
You cannot get a Mewtwo in Platinum.
you can't unless you migrate or do GTS(GlobalTradeStation)
you MUST have a gba slot and migrate mewtwo from the older games it is impossible without cheating or hacking to catch mewtwo in D/P.
No it is not possible.
Mewtwo isn't avalible in platinum (not without cheats anyway) and there is no such Pokemon. I haven't a clue how you've heard of Cyber Mewtwo. Sorry.
1. you cant catch mewtwo on ruby emerald or saphire<spelling mistake> you can migrate the mewtwo you catch on leafgreen or firered to migrate to platinum
you migrate it! hope i helped! _ _ +
migrate phione from Pokemon ranger
you migrate it
Catch it in firered or leafgreen, then migrate.
Without cheats or any events they are Moltres Articuno Zapdos And Mewtwo