H2 Oh No

H2 Oh No! is the tenth level in Crash Bandicoot: The Wrath of Cortex. The first part of the level takes place underwater, where Crash maneuvers a submarine (like in the second part of Sea Shell Shenanigans), shooting enemies and breaking crates. The second part of the level takes place in a damp cave, where Crash traverses on foot, spinning lab enemies and crossing pits of green electrical fluid on iron crates.

Trivia

 * The name of the level is a play on "H2O," the chemical formula for the biological compound water (2 Hydrogen atoms and 1 Oxygen atom).