Rumor Guide - Goku Uses Kaiō-Ken x100 in DBZ Movie 4

Kanzenshuu provides the back history, context, and facts surrounding Goku's supposed usage of Kaiō-Ken X100 in Dragon Ball Z Movie 4 against Slug

The Real Reason So Many Dragon Ball Z Movies Contradict the Canon

Is Goku's transformation in the Lord Slug movie False Super Saiyan

Did Goku break through Hit's time-skip with speed, power, or both since they are related through Ki? - Quora

Rumor Guide - Goku Uses Kaiō-Ken x100 in DBZ Movie 4

Rumor Guide - Kanzenshuu

Did Goku use Kaioken x10 against Frieza before using Kaioken x20 or did he never used 10x and skip to 20x? (Frieza Saga) - Quora

Rumor Guide - Kanzenshuu

Can Goku use Kaioken X100? - Quora

New Rumor Guide Addition: Kaiō-Ken x100 in DBZ Movie 4

Rumor Guide - Kanzenshuu

Should multipliers in the Dragon Ball series be taken seriously? - Quora

Kaio-ken, Dragon Ball Moves Wiki