Speed 600 for H-404 H-60 spawns at the door that leads to the next room stationary. In a few seconds, it will emit a black aura, a red aura, and texts saying "RUN" and "HIDE". It gives you 3 seconds to hide. It will start to move. It can go from wall to wall for 10 seconds, then it will go back to the current room to the door that leads to the next room, and then it will despawn.
