It is impossible the highest level you can get is 100. You might be able to do something with an action replay but I don't know.
Chat with our AI personalities
Sadly there is no code that gives you infinity HP.I can make a code where you can have any Pokemon you want any level and infinity HP.Great if you want a perfect party.
you cant get infinity but you can get 999 with the cheat device
battle it
Snivy evolves at level 17, however you must complete the game first if the Snivy is you or your partner.
on start island a3