1: At some random time when you look at a monitor, maybe at the SCP-895 monitor, it should randomly show a hyper-realistic

maybe being scary, doing something horrible, etc.
2: Radical Larry should sometimes spawn walking from a nearby wall with small noises, cracks, etc. before he does it.
3: When 106 leaves a corrosion puddle behind when spawning, the player should be able to fall in it into the pocket dimension anytime afterwards.
4:

should able to pull the player up into his lair if the player tries to run across the middle of the grated hallway.