The Crystal Temple is a sacred and hidden temple, in a cave setting. Water appears here, and this serves as the 'hard' water level.
Act 1 has a high water level and many underwater areas on this level, making the level somewhat difficult. But near the underwater areas, there are hidden areas, that allows the player to bypass the difficult underwater areas.
Act 2 has three parts for each character. Neon clears the level and he goes to the boss area.
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The boss is a powerful underwater octopus. Neon fights this boss.