Hexxus - Toxic Love intro

Already taking great delight in shaping himself into progressively more advanced forms, Hexxus kicks off his big Villain Song with some rather... suggestive lyrics as he takes on a semi-solid shape, then uses a shock from the Leveller's wiring to transform himself into an anthropomorphic cloud of toxic gas, clearly having far too much fun in the process.

Example of:
Transformation Exhilaration