Earthworm Jim Special - Sega Mega CD - hard mode ending
There's also a normal mode ending, but is literally the same of this one, EXCEPT for the missing message when you see "u're the best" screen.
Played and recorded by V.E.D., as part of the videogame endings database, whose goal is to catalogue and create the world's largest archive of videogame endings! (what an humble and not ambitious project :D)
If you want to contribute please let me know!