Hard as a rock! ><
I like the concept. These kinds of games are always fun to play. Also, it was an original piece. It wasn't a parody or anything. (OK maybe Indiana Jones) The problem I had with playing it was its difficulty and lack of directions. I kind of got what to do but, most of the time I just felt lost.
If you do make another, I'll play it, just try to ease me into it.