NFG's Notes:This is a very unusual font for several reasons. It has a complete outline, which is an unusual extravagance in an 8-pixel space. It's a thin font, which is uncommon, and - perhaps most curiously - it's from a boxing game. It doesn't really seem to suit the genre, does it?
It's very clearly an evolution based in Taito's other game, Night Striker, released four years earlier and a much more suitable game for this sort of style.