Making fun of these conventions can be fun too. From an RPG I was working on a few years back that we never ended up finishing:

The party is exploring some caverns full of wild animals, with the suspicion that something much worse lurks within. Many crazy surprises pop out at them, and the fourth wall is broken repeatedly, much to the dismay of the straight man and party leader, Zeratul. (He was a big Starcraft fan.) Suddenly, they enter a new level with a "lava cave" motif, and the BGM switches to a "tense, creepy" mood song.

Seawolf: "Wow! It's hot in here!"
Hunter: "Uhh... Seawolf?"
Seawolf: "What? Doesn't it feel hot to you?"
Hunter: "Yeah, but I think the heat is the least of our worries."
Heal: "He's right. Haven't you noticed that--"
Zeratul: "Don't say it!"
Heal: "Don't say what?"
Zeratul: Don't play dumb with me. You were going to break the fourth wall again and point out that the background music has changed too, right?
Hunter: Well, we were, but now we don't have to!
Zeratul: ...
...
...
AAAAAAAAAARRRRRRRRRGGGGGGHHHHHHH!!!!!!