Thanks! Glad you enjoyed it. The enemies coincide with the different chess pieces and I tried to translate piece movement into level of difficulty - Pawns are Weak the Queen is strongest. I also set it up so that the not Pawn enemies spawn according to piece count, 2 Rooks, 2 Bishops, 2 Knights, 1 Queen, and the King. I'm planning on adding block functionality this weekend - last item on the to do list ... well maybe not ... adding menu cursor to the to do list.