Teenage Mutant Ninja Turtles, Season 4

[Montage of Stockman's accomplishments accompanied by his voice over]

Baxter Stockman:
(Narrating) Once, long ago, I, Dr. Baxter Stockman, was a whole man. With a brilliant mind and an able body! In the scientific community, I was unequalled! Throughout the world, I was renowned, revered, worshipped! But it all went wrong, horribly, horribly wrong. My genius fell under the control of cruel-minded brutes.

[Flashback of Shredder ordering Hun to drag Stockman away. We see Hun, from Stockman's POV, thrusting a saw in his face, and the image shatters as it makes contact. A montage of Stockman's various injuries plays until we see him as just a brain in a jar]

Stockman:
They whittled me away, piece by piece, limb by limb, until I was reduced to nearly nothing.

[Stockman, in his deteriorated form, approaches the camera menacingly]

Stockman:
But those simpletons aren't to blame. I finally know who's responsible for my downfall, and now, with my new body, I will finally have my revenge!