If you roll a 1 is it counted as a critical miss, even if the hits? I had a situation (on my YouTube channel) where a 12 AC water elemental was brought down to 8 AC and the attack bonus for the hero was a +7. Even if a 1 was rolled then it's still a hit so I didn't bother rolling.
A viewer stated that I should have rolled as I could have got a 'critical miss' and therefore should have rolled. I know you get critical misses in the D&D role playing game but do you get them in the board game? I can't find it in the rules.
No, there's no "critical miss" rule. This borrows from d and D but it's a different system.