Astal

Astal is an underrated platformer/beat-'em-up hybrid for the Sega Saturn. The American release is notorious for lazily having the protagonist use his Japanese voice clips during gameplay, and English-dubbed voice clips (from a voice actor with a much deeper voice) in cutscenes.

Unused Mario Sprite
Hidden within the graphic file APT.BIN is a sprite of a rather timid-looking Mario. Perhaps this sprite was going to be used for a good ol' Nintendo vs. Sega rivalry cutscene?