Love this game!
It feels really polished already! I really like all the mechanics you've set up, especially the freezing and using enemies as platforms. I also think the little dead guys in the acid/poison is really cute!
My only issue was when I picked up the frost card and had to press random keys to figure out what it did. But there was a tutorial later for it, so I guess it's okay.
I would love to see more levels and what you can do with the mechanics! Super great game!