Important reminder that doomguy loves bunnies. So he fought hell again for killing his pet rabbit.

That's Hissy, mascot of Doom community and wiki. He was made into a plush by Chrozoron, and set out onto a world tour. Some time later Linguica (one of the co-founders of Doomworld) took him hostage for two years. There even was a campaign for "Free Hissy!". Eventually, hissy was passed on and he travels the world since. Some day, he will return home.