Football is a recommended character who was recommended by alexlion0511, spongron, and wixxxproducera in Episodes 12, 13, and 16, respectively.
Alexlion0511's Football was seen running around on fire after Firey set it and some other recommended characters on fire.
Spongron's Football was seen in Don't Lose Your Marbles while Tennis Ball was turning in a ball. This version of Football is black-coloured instead of brown, and its eyes are white.
Wixxxproducera's Football was one of the recommended characters in Bowling, Now with Explosions!. In Return of the Hang Glider, Football had itself revealed, after its (fake) Leafy disguise was ripped off.
alexlion0511's Football on fire
(The real) Football revealed