Aqua Material pieces look like symmetrical, spiky chunks of cyan ice. Despite the substance's apparent consistency, it is very versatile in building a number of devices.
In gameplay, the Aqua Materials are used in conjunction with other Materials to build and/or upgrade vessels for traveling the Sea Chart of Sonic Rush Adventure. The player can earn Aqua Materials by clearing the following stages' acts and bosses:
|Rank||No. of Materials earned|
Aqua Materials are use to construct/upgrade the following, although they may require other Materials as well:
- Deep Typhoon:
- Creation: 5 Aqua Materials
- First upgrade: 3 Aqua Red Materials
- Second upgrade: 5 Aqua Red Materials