There are moments where characters talk about eating/being eaten. There are a few moments where something clearly sentient is eaten, sometimes in pretty startling ways.
I don’t remember right now if anyone dies falling down stairs, but there are multiple moments when someone runs up a false staircase that turns flat and they fall/slide.
Shown in wait time 22 minutes when Norma enters Barney’s body after Cortney eats junk from a persons purse it’s mostly contained by the bag and it’s green and cartoony
Characters sometimes wear mascot outfits, and there are shots from the inside POV. There are also multiple scenes in elevators and tunnels and other small-ish spaces.
There is a scene mid-S2 where someone tries to set up an immortal and a mortal together, and they do have a heart-to-heart, but they don’t end up dating. Aside from the teenagers it’s largely unclear how old anyone is, and there’s a lot of magic and immortality and ambiguity and chaos, so this is hard to answer definitively.
There is a brief cowboy western standoff, the scene switches to the exterior of the building, then there are gun sounds. It’s briefly implied that someone got shot, but it’s not real and he’s fine.