|Occupation||Henchmen of Toxzon|
|Weapons||Enhanced strength and durability|
|Voiced By||No voice|
Giant Acid Goopaniod is the fusion of Goopaniods that result in a giant single one. This type of Goopaniod is featured by the large height, super strength, and enhanced durability. It first appeared in Supermania.
This monster was created when the remains of the Acid Goopaniods fused together to make a large monster.
When Max, Steel and C.Y.T.R.O. defeated the Acid Goopaniods, they merged into a giant one, which easly defeated C.Y.T.R.O., but not destroying him. Later, C.Y.T.R.O. appeared with the head of this monster, confirming that he destroyed it.
- Superhuman Strength: As seen in Supermania, he is very strong in battles, even able to take down C.Y.T.R.O. during some minutes.
- Superhuman Durability: He is very durable in battles, as seen in Supermania.
- This was the first giant Goopaniod seen in the series.
- At the beginning of Max Steel: The Dawn of Morphos, a jar with this creature's head is seen.