Very nice fonts! My only criticism would be the use of a trailing bottom tail on the single-story lowercase a. If you're using the font proportionally in Game Maker, the kerning will likely cause a gap between the a and the next letter. This is really a fault of Game Maker not giving enough options for kerning, though, and not your fonts, which are excellently designed. Just wanted to stop by and show my appreciation for your work on these beautiful pixel fonts and making them available!