Serious Sam: Siberian Mayhem | All Weapons Gameplay & Commentary

I decided that I'm bad at Doom-type games, so I activated all the weapons in the game on arguably the best level on Serious difficulty for all your enjoyment! Join our growing community: Come check out the stream → https://www.twitch.tv/sgumbyy Support the YouTube growth → https://www.youtube.com/channel/UCmuvTb3mf20TXZMr_G7SQJg/featured Join the Steam Community Hub! → http://steamcommunity.com/groups/Sgumby Drop a like and a sub if you'd like, it helps and means alot.