Wyv and Keep: The Temple of the Lost Idol is a fun, comical, co-op, puzzle platformer game. Each puzzle takes place on a single screen and has a kind of Sokoban-style gameplay. If you play in single player mode, you switch between each characters. If you play with a friend either player controls a character. The price might be a little high at the current $15 for the depth of the game play, but there is a lot of content here if you enjoy the puzzles.
I played with a friend, so my experience with this game is from that point of view. I have not tried single player. The game consists of moving around crates to reach new areas, activate buttons, block traps, and eventually open up the exit which both characters must reach. New obstacles are added in each set of levels, such as arrow traps, spikes, enemies, and lava. In addition, there are new objects to play with such as dynamite and crates hanging from ropes that must be cut down. Without giving away any spoilers, if you make it to the end of the game you are in for the quite the surprise, or at least it was for my friend and me.
The platforming part of this puzzler comes in a lot in the later stages. Once you have figured out where the crates need to be moved around in a particular level, there is still a lot of timing and precise jumping involved.
All in all, I think anyone who is a fan of this genre will enjoy this game, even more so if you have a friend to play it with.