The Energon Pub

i've gotten gold medals in all the missions but one. and it's locked. it's called "orb smash up" i can't get to it. can anyone help? it still says i've completed 100% of the game but i still can't get into that locked level.

~miguel

Did you tried already to check some good faqs on http://www.gamefaqs.com and what is the difference about the Autobot and Decepticons DS version anyway and is this game really so good ?