Doom II: Hell On Earth Happy Time Circus II

Description
Happy Time Circus II is a mod Doom II, created TheUnbeholden.
Info:
Your car broke down for no apparent reason so you decide to walk to the nearest town. On your way there you notice an odd occasional balloon here and there elevated slightly above the treeline running along both sides of the road. "Balloons? What the fuck. This better not be some lame joke wad," you say to yourself, not even knowing what that means. You finally arrive at what seems to be the start of a town. The sky is full of thick layers of unusual clouds. You start to turn and head back but after a few steps you run into some kind of invisible barrier that wasn't there a second ago. "I'm going to kill the author of this lame-ass wad." you mutter to yourself, again not knowing what you just meant by that. You realize that the only way out is through the town. Luckily you brought along your pistol, something you grabbed just as you left your car.
To run the mod you need ZDoom.