I messed up once on the courier one, almost failed 2nd time when I forgot that dining area had 2 floors and I couldn't find the dude
I did complete the one that goes to that ice mountain top with a 3 hit limit. I got hit twice early and was like 'well I'll just clear the mobs out and walk back' but managed to clear with just that 1 health left almost the whole way
That ice one wasn't required for completion though
'Just sitting around the house tonight w my dog. Felt like I should be doing something important, but couldn't put my finger on it.' - Phil Kessel on USA snub