Another fantastic band with a very strong cult following. Gwar is a Comedy Thrash Metal band known for dressing up as Medieval Monsters, putting on amazing concert shows with lots of theatrics and fake blood, and singing songs about gory sex. In 2014, their last original member David Brockie (who played Oderus Urungus the vocalist) OD'd and died. Sadly there are no original members left unless you count a session member from their 1st album as an original member. Anyhoo, do any of you know of this band? If so, favourite songs?

somehow they got mentioned in the sega genesis beavis and butt-head game

Actually it was both games for the SNES and Genesis.  In both those games Beavis and Butt-Head try to get Gwar tickets

Gwar were also on Sally Jesse at the height of their cult following, that Viva La Bam guy hosted them on his MTV trash show, they hilariously enough did a song for The Codename Kids Next Door on Cartoon Network, and even have a tabletop role playing game (as of the mid 90's, so years before that Sheldon Bazonger was invented made nerd culture obnoxiously mainstream and stagnant) themed after them.  There was also mass debate for a time on whether or not David Brockie's character Oderus Urungus should be put in Mortal Kombat. If he was, I'm throwing $500 down on an XBox One and playing said Mortal Kombat game 

ah never knew about that, i'm only familiar with the genesis game since it's the version i grew up with. all i know about the snes game is that it was just ok compared to the genesis one.

Here are the two songs retrofitted and made into The Kids Must Eat and Slamwich for Codename Kids Next Door

Gwar was featured a few times in the Beavis and Butthead cartoon, which is probably why they are a part of the video game.