On Spiderman 3 for ps2 you collected all of the meteorites and become Venom how can you?

You can't actually become Venom by collecting meteorites in Spider-Man 3 for PS2. That's a misconception. The game doesn't have a mechanic for that.

Here's why:

* The Meteorites are for Suit Upgrades: The meteorites you collect are used to unlock different suits for Spider-Man, each with its own special ability. They don't transform you into Venom.

* Venom is a Separate Character: Venom is a playable character in the game, but you unlock him through different means. He is not a transformation you achieve through gameplay.

* The Game's Story: The game's story focuses on Spider-Man battling Venom, and the game's narrative wouldn't make sense if you could just turn into him.

While the idea of collecting meteorites to become Venom sounds cool, that's not how the game works. You'll need to follow the story and play through the game to unlock and play as Venom.