Pink bubbles:Poison(Can blow up cars) Red Brakes:Can fully stop your car Orange Screw:Makes car Reach it's top speed HAMMER:Best power up in the game(Blows up cars) Blue Splatter:NOS(Turbo) Blue Helmet thing:No damage is done to you
First you have to go to "hot wheels cup". Win it with rock buster. If you dont have him then go to "Road to Rustwell"(exhibition race) and there is a jump that you can go on.
Go behind it. There will be two buildings. Go behind them and ram into the back. Thats how you get "rock buster". As I was saying, when you win it with that car you will get like 6 other cars and 3 more tracks.
Go onto "test track" and in that red room go against the wall and there will be a couple openings that you will have to break. One of them will have "Hot Wheels 500" in it.