Some of the games he plays are quite scary, in more recent episodes, there is barely any horror.
Most of the time, Brandon cracks jokes at the viewer which sometimes lowers the horror.
Though half of the humor is dark.
Challenge videos are a little tense, but again, his humor lowers it.
Humor mainly ranges from funny to dark, most older videos contain a lot of dark humor that not many, ( if any ), can understand it. While future videos contain much more fast paced and more comedic humor.
Even with a funny humor, a lot of the challenges mentioned in section2 or not mentioned on here, can be extremely painful to watch and you'll find it hard to laugh at.
The egg challenge for example may lead someone to throw up, due to how much dirtyness and ikiness there is on the floor and on both Brandon and his GF. If worse, near the end of Brandons' turn, he becomes so dirty, that in one scene, you are able to see one whole gunk of snot.
The episode named ghost pepper challenge, contains him in absolute pain and having a lot of disgusting things in his mouth, and you can feel him suffer, you may also throw up a few times.
In future episodes, scenes are more comedic than intense.
Examples of better and funnier humor is the episode where he's ghost hunting with an application pretending that there is an actual ghost that tormented him at night and he's trying to find him. The only thing that may scare you, is the well done ambience.