He's wide to exaggerate his giant, intimidating build to match with the stylized art style. Also, that skin is "Uber Jason" from the Jason X movie & the bed move is from a kill in Freddy vs. Jason.
0:22 bro that Friday the 13th: part 7 the new blood intro reference hits different ever since he got stuck in copyright hell 2:06 also just so you know thats actually uber jason from jason x