Mechanic: he rebounds 3 - 9 times while having an aimscript. can kill you under tables. Also, he gives you just TWO seconds to react after his spawn sound. and he comes from the front. Spawn Conditions: If !-42 spawns and the room num is 270+, then there is a 1/25 chance that this guy will spawn a few seconds after !-42 despawned.
update: redesign and now the audio is tidal wave