What does the secret door do in Lego Star Wars 2 on ds?

The secret doors in Lego Star Wars 2 on the DS don't have a single, consistent function. They can do a variety of things depending on the level and context. Here are some of the possibilities:

* Unlock new areas: Some secret doors lead to hidden areas with extra collectibles, like studs, minikits, or even character tokens.

* Reveal shortcuts: Others might reveal a quicker path through the level, saving you time and effort.

* Access bonus challenges: A few secret doors might unlock bonus challenges, allowing you to test your skills in different ways.

* Open up puzzles: Some secret doors might be part of a puzzle, requiring you to complete a task or find a specific character to open them.

* Provide access to special characters: Occasionally, secret doors might grant access to a hidden character token, allowing you to unlock a new playable character.

Ultimately, the purpose of a secret door in Lego Star Wars 2: The Original Trilogy on the DS depends on its specific location within the level. You'll have to explore and experiment to find out what each secret door holds!