The G-Meister
Giga Slime
For some reason, when playing multiplayer with a friend (while I was P2) most if not all death sounds refused to play. This certainly included the Boar and Pecko, but I think there were more. I think this might be correlated as well, but gigaslime displayed his idle animation while exploding (although the sound worked correctly that time). This happened in all of the runs we did, although it hasn't happened before when I've been P2.