Kermit is the only correct answer.
Kermit the Frog (Muppets)
Robin (Muppets)
Wart (Super Mario Bros. 2)
Frog (Chrono Trigger)
Frogger (Frogger)
Dig 'Em (Smacks mascot)
Michigan J. Frog (Looney Toons)
Winky the Frog (Donkey Kong Country)
Frogfucius (Super Mario RPG)
Frog (Frog & Toad)
Frog Footman (Alice's Adventures in Wonderland)
Other