Happy birthday Pacman

There's this gorilla that kidnapped a plumber's girlfriend and threw barrels at the poor dude. Then the plumber decided to imprison the gorilla instead with help from his brother, which pissed off the gorilla's kid. Which resulted in gorrila sr. and jr. stomping on the plumber a few times.
The trauma of the experience resulted in the plumber getting addicted to mushrooms, dressing up in furry suits and picking fights with (probably hallucinated) monster turtles.

so.. ehm...yeah. The names escape me though