To access Act 2 and 3 in most Sonic games, including the official Sonic Colors, you need to complete Act 1 first.
Here's how it usually works:
* Act 1: This is the introductory level, where you'll learn the basics of the stage and potentially encounter a new enemy or mechanic.
* Act 2: This level usually introduces a new challenge or obstacle. You might encounter a new enemy, face a time limit, or navigate a different path.
* Act 3: This is the final act, often the hardest. It might involve collecting more rings, battling a boss, or completing a specific task.
If you're playing a fan game, there might be some variations to this format.
* Check the game's instructions: The game developer might have included instructions on how to unlock Act 2 and Act 3 within the game itself.
* Look for hints online: Try searching for "Gameland Sonic Colors walkthrough" or "Gameland Sonic Colors Act 2 unlock" on websites like YouTube or GameFAQs.
Remember, it's important to play legitimate games and avoid unofficial downloads that could be unsafe.
Let me know if you have any more questions about Sonic Colors or other Sonic games!