Entire 3rd period here, not ideal quality but still.
https://www.youtube.com/watch?v=92OkAfGHDMg&hd=1
9:24 first questionable penalty
Music rams into the goal and dislocates it. Referee blows a faul for intent. Hard to prove intent, but ref made a call. From the highlights it does seem he went into it with his hand, then lost balance and fell down. Easy to argue it was non-intentional though.
11:40 questionable no-call
during the above powerplay just before scoring, a Hudacek and Kopitar get in contact, Kopitar ends up on the ground and Slovakia eventually score. My take on it, Hudacek never left the ice, skates stayed down, contact was made with Hudacek's shoulder against Kopitars left arm, Kopitar got into a spin it appears he may have hit his own face with his own arm during the contact. Nothing to call here. Slovakia scores.
14:34 second questionable penalty
In my opinion clear tripping, Slovene left his foot there and tripped the Slovak, a right call.
So this is my analysis of the 3 situations, the first may have been unnecessary call, others were fine.
With the two bad calls in the first on both sides, this would still not make it a biased game.