View Ending Sequence:
You must unlock all the levels and take photos of all Pokemon.
If you do this, save your game and you will see the ending.
Access Volcano Level:
First, when you are near the exit gate in the tunnel level, throw
"Pester Balls at the final Electrode. After it self-destructs, a
path to the Volcano level will appear.
Access Rainbow Level:
Finish the Valley level and take photos of all six signs. The
Professor will then open the Rainbow Level!
