I HEARD a few rumors, but I'm not sure if they're true.
1. Wii gets Waybig all the time (FAKE)
2. if a user with the Wii version enters the code "upgrade" not only does it upgrade all aliens completely, but they can go Ultimate any time.
3. DS gets Cannonbolt/Ultimate Cannonbolt
They seriously need to make a Ben 10 game with all the aliens. Lay it out like CD, with 4-5 aliens selected for quick transformation.
Because I know 41 aliens would be hard to scroll through...