Here is the full list of all 12 Who's That Flying?! achievements.
Your score doesn't need to be infinite to unlock this achievement!
A true hero answers every call to action!
Go toe-to-toe with 100 monstrous foes!
If you're going to fail, do it like a hero!
Protect your planet with heroic perfection!
Prove your innocence once and for all!
Keep mighty Moscow in rude health!
Keep Mexico safe - the whole enchilada!
Don't let a single light go out in the Neon City!
Awarded for destroying an obscene number of ravagers!
Don't let anything take a bite out of the Big Apple!
Is there anything that can't be solved with a hyper-beam?