Majority of the plot is inspired from the film The Way of the Dragon (1972).
Jemaine Clement dubbed both the voice of Action Fighter and Tongan Ninja.
Tongan Ninja's master is indeed correct in saying that the meaning of the Chinese characters written on the Tongan Ninja's bandana is not "Good luck while flying". But the characters doesn't actually corresponds to the actual Chinese translation of the word "Fighting Spirit" but rather just the literal translation of the words "fight" and "spirit".