You died.
You'll be doing that a lot in this game...
GG WP
You (technically) beat the game!
Ray21K: The God Gamer
You beat the hardest boss to exist in gaming. The most recent person to beat this fight (on stream) gets the Steam achievement named after them.
Seek Help
This achievement was given to you out of a mix of concern and pity.
Probably Cheats
You beat Fever Meme without dying! In other words... you probably cheated.
That Was Pointless
Just like my hopes of ever being happy. Thanks for breaking my heart again.