There are different categories of Red Bricks, including:
1. Character Tokens: These Red Bricks unlock new playable characters in the game.
2. Studs and Coins: These Red Bricks provide an increased number of studs and coins, the in-game currencies.
3. Multipliers: These Red Bricks multiply the number of studs and coins collected by a specific factor.
4. Power-Ups: These Red Bricks grant special abilities and advantages to the player, such as increased health, faster speed, or improved attacks.
5. Extras: These Red Bricks unlock various bonus content, such as concept art, behind-the-scenes videos, and more.
Overall, Red Bricks are an important collectible in Lego Star Wars 2 as they offer a variety of rewards and enhance the gameplay experience by providing bonuses, new characters, and other extras.