Dragon Ball movies don't always get the appreciation they deserve, especially not those from outside the DBZ era.

These non-canon Dragon Ball films have quite a few interesting elements that should be brought back into the mainstream series.

Goku's transformation into a Super Saiyan is arguably the most iconic scene in Dragon Ball Z, perfectly executed in every way. He transforms after watching Frieza -- who's as fearsome in Dragon Ball: Sparking Zero as ever -- kill Krillin, his childhood friend.

The last Dragon Ball movie before Akira Toriyama's passing had one mission: give Piccolo, one of the franchise's best characters, his due.