The Fizzers are minor aereal transports used by the Floogals in some episodes.
The Floogals using his fizzers in
Mission From Floog
A fizzer is a very small transport, Some people think that is the small version of the Spaceship, There's 3 fizzers used by the 3 protagonists and having their colors.
In Project Mirror, Floogals use Fleeker's Fizzer as test, In Project Magnet, Flo's Fizzer is stuck in the Magnet.