We've done some editing and now have new updates for the Desert Temple, including a new basic sand enemy (shown below) and also a new desert background, a desert tileset for the ground, and a desert sandstorm effect. We've also done quite a bit on the Ice Temple, including a new flying enemy (shown below) that floats around the screen until it sees you. The Ice Golem now has an effect when it punches you. A burst comes from it's hand and it sends you flying across the screen at high speeds! Personally, I've had a lot of fun get beaten up, since you get to see how far you go!
As always, please post your ideas either as a comment to this post, or in the forum!