There is a big bug:
I had a long set of combos, when hit MASTER SQUID and he had a counter-attack. My first action was an attack, and then he used the counter-attack, after which his health dropped to zero and he got a new health. After that, all of that long line of action not taken, and began his move. "What the shit", I thought.
Sorry guys for the bad language, I use Google translator.