Stegosaurus Territory

Red Power Bricks 

Red Power Brick 1: Charge through the 5 cracked gates. You will have to bounce on the mushroom to reach the upper ledge for two gates. You can now purchase Helium Voices for 100,000 studs.

Gold Bricks

Gold Brick 1: Pry open the log to free the Stegosaurus's tail.

Gold Brick 2: Use Dilophosaurus to destroy the black rock, then crawl through the travel chute. Push the box off of the ledge to reveal this.

Gold Brick 3: Charge through the pillar, then defeat 15 mercenaries before the time runs out to reveal this.

Gold Brick 4: Use the pounce bar to reach the ledge with this.