Speedy on Polly Mountain 1.
Battle Kukku 16th, aka "Speedy", is a character and recurring boss in Tails Adventure for the Sega Game Gear. This green-feathered bird is heir to the throne of the invading Battle Kukku Empire.
The Battle Kukkus appear to operate a rather idiosyncratic system of archontology, pre-emptively granting the crown prince an imperial numeral while his father is still very much alive and well and throwing bombs at people. Perhaps as a means of circumventing the nomenclative confusion, the prince goes by his nickname, Speedy. He is first encountered in command of the Kukku troops on Polly Mountain, and later in the Battle Fortress.
Polly Mountain 1 boss
After fighting his way up through the avain soldiers swarming Polly Mountain, Tails finally reaches Speedy, who immediatly bolts straight skywards. The fox (with a suddenly infinite flight gague) must pursue the crown prince as they dart amidst the mountain's upper limits. Speedy periodicly attacks Tails with a corkscrew dive-bomb from above. There is no means of actually damaging this boss; like Robotnik in Sonic 1's Labyrinth Zone, victory comes simply by making it to the summit of the mountain. At this point Speedy, exhausted, drops the P Chaos Emerald and is shown flying back to the Battle Fortress.