[Help] How make a statue an enemy?

[Dobbydoo]

It can now glide after me, but it won't attack me, and once it stops, it won't start walking/gliding again and just stands still at the same spot :/
And is there any way I can remove the screeching sound and blur effect when I look at it (just for this one monster) without making my custom story a total conversion?
EDIT: The problem with him stopping to move was a problem with him actually being stuck in the ground, so I just had to lift him up a little in the level editor. He still won't attack me though :/