Cute penguin! I like the core of this puzzle platformer a lot - the puzzles themselves weren't ridiculously hard, and I appreciate the compass you added to each character's head.
As others mentioned though, the controls could use some tuning. In particular, something seems off about the collision detection, that gets my character stuck in the vertical middle of a wall instead of sliding up or down from it. If it were easier to slip up and down walls, that would be so much more fun.