I recently bought a used Pokémon Platinum game, and it's obvious that the previous owner used cheats (it had 900 masterballs and a level 100 shiny Crobat but only 1 badge), and I'm just wondering if there's any risk the game is now corrupted or something, even if I start a new game on it.

I had a Pokémon Yellow once, which turned out to be corrupted (might also have been due to the fact that it ended up in the washing machine), so I'm a bit paranoid. If I start a new game, will the m4d h4x be reset (undone), and the game perfectly legitimate, or should I return it?

tl;dr
Bought a used game and cheats were used, if I start a new game, is there a risk the game will be corrupt?

way tl;dr
If cheats have been used, is there a risk the game will be corrupt if I start a new game?

even wayer tl;dr
if u cheat can the game b corrupt even if u start new?