Right now he's playing as Jazz, and has to go through a series of battles where he fights Starscream, and then Starscream and Blackout.
Things I've noticed:
1. The Decepticons can block bullets infinitely, but can't block an umbrella.
2. Right between part 1 and 2 of the fight against Starscream, the developers were literally too lazy to replace the graphic of him BLOWING UP AND FALLING TO PIECES (as he isn't dead yet) with one of him flying away.
3. Starscream and Blackout do almost no damage to Jazz, unless they're both present, at which point he dies in about 2 seconds.
Add this to the PS-1 quality (minus the artifacting) cut scene I saw with Sam at the car dealership, and I can already see why this game gets panned. --- Funny how GameFaqs tags the word "faqs" as mispelled.