Thanks a lot! I still have your game in my computer, gotta have something quick to quench the tower defense thirst, hahahah
Well, it is a really light game by itself! It was made in Gamemaker, and i tried to keep all my code tidy and pixelart small so i could work as fast as i could. I think the biggest part of the game must be the sounds, specially the song loop. I wish i could help you more with this, but i think it's just Gamemaker doing lightweight executables as long as you don't have hi res art. Always good, though!