Hanabii (ハナビー) is an enemy Badnik that appears in Sonic Advance.
The Hanabii is a green wheeled lizard robot found in Casino Paradise Zone. These Badniks roll back and forth, making a stop to launch fireworks into the air which makes them dangerous to simply jump on. The safest way to destroy this enemy is to perform a Spin Attack, a Spin Dash or any character's basic attack.
Hanabii's name is derived from the Japanese word for fireworks, "hanabi" (花火), hence its ability.