Sweet aesthetic and incredibly unique idea. I bet the team discussion pitching the idea was a blast!
The audio and mechanics were nice and self-explanatory, apart from I totally forgot how to stop being a penguin after being in penguin mode... Forcing me to witness the demise of my flightless feathered friends while frantically patching up the ice.
I always find this with text-based tutorials, personally, but that definitely could just be me being forgetful!
Also, hate to be a pedant, but I'd be a little careful with the term "Eskimo" as I know it's seen as derogatory in some circles :)
Sweet game!