Avatar Chooser in Video Game

This is a wonderful thing we have for the Wrath of Megatron video game.
It allows you to choose an avatar and play with him throughout the game.
If you play to the end of the game as Optimus Prime, It allows you access to Megatron.

Its kind of set up like the password levels, except, this time you can run around in different avatars.
Also, If you have a friend who has played up to all the levels, you can ask him/her for the passwords to unlock avatars.

Another thing that is really cool: With Devastator, you can split him into six pieces.

Another way to unlock avatars is to find the five "Key Cards" hidden in each DVD of Transformers: Legacy of Unicron, and also in the Legacy of Unicron blog.