Enter "Lilly, Lilly, Lilly, Lilly as a password to unlock the Bird's Nest costume.
Level 3 Muzak Note Puzzle Solve
There is a screen that starts with six musical notes. Here is the pattern to open the path without going through the whole maze. Remember, you must stay on the musical notes. Song of frog is first. Pattern is B-C-A-D. B is 1-2-3-4, C is 3-2-1, A is 3-4-5-6, and D is 5-4-3. This will open up two of the rings. The next sequence will open the next two. This is the tulip group and the pattern is B-A-D-E-C. B is 1-2-3, A is 1-2-3, D is 5-3, E is 2-1 and C is 2-3-2. This will open the path so you can advance.
Painting
Enter Lumpy, Lumpy, Lumpy, Lumpy as a password to unlock the Painting.
Ship costume
Enter Frogger, Frogger, Frogger, Frogger as a password to unlock the Ship costume.