From The TimeSplitters Wiki

Float Alien
Unlocked by	Planet X on Normal in 3m 30s
Species	Alien
Size	Normal
Accuracy	N/A
Agility	N/A
Stamina	N/A
Fire Proof	N/A
Shock Proof	N/A
Default AI	N/A
Native TimeZone	2020
First Appearance	TS1 Arcade
Relations	N/A
Games	TS1

TS1 Gesture	Spins while slashing forward.	TSFP Gesture	N/A
TS2 Gallery	N/A	TSFP Gallery	N/A

Float Alien is the first character in the series to float. Theoretically, he has invisible legs and is a normal sized character, but shooting below him does not affect him. He is also the only floating character in TS1.