We made a first public build of Chest is the key, our jam entry :

Controls:

arrow keys to move, space to attack when you have a weapon.

http://www.ludumdare.com/compo/ludum-dare-28/?action=preview&uid=31298

We are still undecided about the amount of explanation to give in game, since the surprise factor play a big part in our concept. So, it’s feedback gathering time!

cheers