Okay. Here is a list of everything possible in a game:

Character Possibilities:
Speed alteration
See own body
Iron sights
Jumping height alteration

Players:
Blow off body parts
Advanced AI
Spawn when triggered
Stop spawning when triggered
Infinite spawn
Destroy barriers

General Game Play:
Custom Scripts
Option pick up weapon
Option pick up ammo
Buy weapon
Buy ammo
Play Video (activated, when within, when dying)
Show on screen images (activated, when within, when dying)
Play sound (activated, when within, when dying)

Just ask stuff and I’ll make a note of it on here.