WOW!! I really loved the game idea! The concept was very creative, and the level design was incredible! Probably the only suggestion is to implement a sort of x-ray when the player is obscured by a wall (the mini-map at the top does help but its a bit confusing, maybe make it also isometric). I don't really find difficulty with the movement since my game has a similar movement style, making that my only concern. Loved the idea and think it can be taken to new heights (no pun intended)!