It feels like Snarbolax is immune to the bell while he's chomping my face off.
Only while he's getting ready to pounce or after he stops his chain of attacks, does it seem like I'm able to stun him with the bell.
Snarbolax hitbox
Wed, 12/12/2012 - 18:59
Constructus
I noticed that back with the October 17 update. I didn't bother mentioning it because it made the fight only a little bit harder.