Hmm.... that font is definitely anti-aliased, and the border frame for the text is unscaled for the full 640x576 viewport you used.
The sprites are upscaled by a factor of three, which, if I'm mathing correctly, means an unscaled screen size of 213.3x192.
The art that is there looks great, but I'm not convinced the viewport fits the screen size constraint we were given for the jam.