Sky Pop

The Sky Pop is a yellow airplane that first appeared in Super Mario Land and appeared again in Mario & Wario.

Super Mario Land
The Sky Pop is used only in World 4-3 of the Chai Kingdom. It can fire missiles with unlimited ammunition. Mario uses it primarily to defeat Chickens, Biokinton, Roketons, and Tatanga. After defeating Tatanga, Mario flies off with Princess Daisy in a different Sky Pop that is Jet-Powered and has two Pilot Seats.

Mario & Wario
After clearing Level 10, the Sky Pop is used to intercept Wario and drop one of his enchanted Barrels on his head as punishment for the mischief caused to the heroes. The Sky Pop is shown to have an unusual landing gear configuration which is a reverse-tricycle with only two wheels.