Float Type

The Float Type (浮遊タイプ) is an enemy that appears in Sonic Adventure 2 and Sonic Adventure 2: Battle. It is a model of synthetic life-forms created by Professor Gerald Robotnik as a part of the Artificial Chaos project, a series of experimental cyborg weapons based on the ancient deity Chaos, which roam the Space Colony ARK.

Appearance
The Float Types are floating orbs of water, with a grey/white and turquoise mechanical head shaped like Chaos 0's towering on top. This head has the symbol of Project Shadow on its forehead, light green, pupil-less eyes and a brainstem on the bottom.

Overview
In Sonic Adventure 2 and Sonic Adventure 2: Battle, Float Types are only encountered in the latter half of the games' hero and dark storylines, but are some of the strongest foes encountered. They are found in the following Stages:

In gameplay, the Float Types will either hover in a fixed point or follow a default trajectory through the air. Either way, their flight abilities make them much harder to hit. These Artificial Chaos attack by quickly reaching out with long and extremely accurate tentacles in a circular pattern to stab the player, so while some are quite slow at turning, their attack makes up for it. A tip to avoid being hit is to be behind them. Alternatively, these variants will target the player with eye laser shots.

The Float Types' water bodies are invincible to attack, though their heads are their weak point. Once properly targeted, the Float Types are easily destroy with a hit to the head. When destroyed, they award the player 200 points and drop their power source: a Chaos Drive.

Powers and abilities
Float Types are capable of firing lasers from their eyes and can extend tentacle-like stretches of water from their bodies, much like Chaos 0 itself. They are also capable of flight and levitation.

Trivia

 * In the original Dreamcast version of Sonic Adventure 2, the Float Types' liquid bodies had a transparent effect. In Sonic Adventure 2: Battle, the transparency effect was removed, making them appear to have a more "solid" appearance.