Thank you for your feedback! I had drawn up some sketches on paper to get a feel for how the game might play, but until I actually got it working in-engine, I couldn't be totally sure that the attack patterns, the number of attacks available, enemy spawning/movement and board size would all come together to deliver that "miniature puzzle" experience. I'm glad you enjoyed it! And while I think more enemies, moves and board types could really extend the game, for now, there's always endless mode... >:)