Layout
The underwater tunnel layouts will vary slightly with each playthrough. However, some sections such as the green pipe maze, will always appear. Try to memorize those permanent areas.
Power-ups
The item shop will eventually become available. You can spend pearls to purchase costumes and power-ups in exchange for pearls.
Hit helmets: Allow you to take an extra hit.
Shrinkers: Decrease Helmut's size.
Pearl Magnet: Attracts pearls to you.
Power-ups are also occasionally rewarded for watching advertisement videos.
