Toxzon's Secret Hideout is a hideout that belongs to Toxzon and Fishy. The hideout is actually two places, a nuclear plant and the sewer. In the sewer, there is green goop, possibly Toxzon's Green Toxin or just sewer water. There is also platforms and also like THI computers, since he used to worked at THI, when he was Tytus Octavius Xander. In the nuclear plant, he has like sewer water, like his lab, and also other things. It is nearly empty. It first appeared in C.Y.T.R.O Attacks!, which is the return of Toxzon.

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