There are over twenty five variants of the Kamehameha.
Bulma, Trunks. This is for you.
ENGLISH DUBBED VERSION: When Jeice arrives on Namek, he tells Frieza he brought "the special Dragon Ball scouter." This is a REGULAR scouter. No scouter can detect Dragon Balls.
While other DBZ movies just used whatever opening went with the show at the time the movie was release, Tree of Might features a specially-made opening, featuring the Z-Fighters gathering the Dragon Balls to restore the destroyed forest.
The original Saban dub was very heavily edited, removing most of the violence and also all gore, several visual shots of alcohol, mild sexuality and nudity were removed or altered, along with other seemingly random footage presumably removed to speed up the pacing of the story. The new Funimation dub restores all missing footage, including a long segment explaining how Gohan ended up clinging to a tree above a waterfall in the first episode, and an entire episode in which Gohan falls into a cave while alone in the wilderness and meets a nihilistic trapped robot. The new version combines reused dialogue from the original dub with completely new dialogue more closely based on the original Japanese version, with numerous references to death and dying restored after being entirely censored in the original dub.