When the evil Toxzon escaped from Copper Canyon Prison, he planned on revenge on Max Steel. So he wanted to wipe Copper Canyon off the map. So he went to Copper Canyon's Hazard Wasteland and then he absorbed an acid toxin. Then the toxin made a new mode for Toxzon, known as Toxzon Acid.
- Supermania (debut & last appearance)
|The Gallery of Toxzon Acid can be seen Here.|
- Toxzon Acid caused an Acid Rain as his evil plan.
- The Acid Goopaniods and Giant Acid Goopaniod are created by this mode.
- Similar mode like this appeared in Toxic Relationship, which was Toxzon Mysterious Orange Toxin.