Floating Sponge Garden

Campaign
The 5th level in the single-player campaign. The player must shoot sponges to make them bigger and swim up them.

Sunken Scroll
How to find the secret Sunken Scroll: After reaching the 4th checkpoint in the level, there is a sponge block that is already at maximum capacity. There are 2 (missile enemies I'll look them up and edit their names in later) that will charge after you once they see you. Lead them into the sponge to make it shrink. Now go through the grate the sponge was covering up and the scroll is right next to you.

Amiibo
There are 3 other versions of this level that can only be played through their respective Amiibo.