Johnny Test (Hulk/Monster Transformation)

Johnny Test is a (rather lame) cartoon about a bratty kid whose genius sisters perform all sorts of scientific experiments on him, often transforming him into different animals and people. Almost all of the transformations are extremely brief and of little interest. The episode "Johnny Testosterone" involves him taking too many growth hormones and turning into a Hulk-like muscle monster, and the TF here is slightly longer than usual.

EDIT: The file was taken down. I'm currently searching for a replacement, but in the meantime, here's a Spanish-language version of the video.