Wooldoor: (escapes from coffin)
This is a double reference:
1) When he escapes from the coffin, it's an allusion to Kill Bill: Vol. 2, wherein The Bride does the same thing to free herself from being buried alive (Wooldoor even said it was from the movie).
2) When he was digging up from the ground, it was shown in the pixelated style of the game Dig Dug.