No the name of it.
it's inspired by a story book character called "Karlsson katuselt"(I sayed it in Estonian cause I didn't remember og name). The character in the book is Karlson, check his video, where he made this game:
Ok. This very confusing but where it says
Karlson is here to kick ass and drink milk, and he's all out of milk
Is a inspired from a game called Duke Nukem 3D. Which released in 1996. The original Duke Nukem 3D Line Is