Oddworld: Munch's Oddysee HD

Missable!
This is achieved in Boiler Room. When you leave the first room and exit the corridor, there will be a small wall on the right. Around this wall is a sleeping Big Bro Slig. To the left of the exit is an explosive barrel. Have Abe pick up the barrel and throw it on the Slig. Quickly run back to behind the small wall and use to see when he goes back to sleep, then throw another barrel at him. Repeat until he has been killed. Three barrels should be enough.