For some reason, 99% of the time SK runs fine for me, yet Snarbolax is always glitchy, jumping backwards just before I hit the bell, meaning I have to wait till it's eating through my shield before I can hit the bell safely.
If this is fixed, a few extra enemies should be added to the full run to compensate. I wouldn't mind seeing a couple of red rovers after the spike walk, and a few wolvers during the boss fight.
Also, there seems to be this glitch where Snarby for 1 second behaves as if about to go into bite state, but then ends up doing something else, meaning immunity for over a minute.
I agree that the snarbolax run, needs an increase in difficulty and definetly needs more monsters for tier 1 boss run. I do not agree that there's a problem with the snarby besides the fact that sometimes the bell's wave doesnt hit the snarby even if its nearby (not 99%, more like 5%). If it doesnt hit the snarby even when its very close to the bell, then you must be lagging a little. I think that the fact that the bell rarely doesn't work on snarby is an increase in difficulty, but not sure if its urgent to fix.