NFG's Arcade Font Engine

This font is fairly interesting: if you look closely, the same gradient pattern is used in every letter, a diagonal dark-to-light with most of the top-left corner being the lightest colour. In the sprite data I found an 8x8 tile that is the fill pattern for this font. It could have been used as a fill, or guide, or even an overlay, filling any space with the gradient pattern used for these fonts.

This sort of fill is not as common as you might think. Many fonts use a pattern that's customized, to some extent, to each letter. Seibu's Raiden Fighters, for example, with its highlight always at the brightest point for every letter, no matter where it is.

Speech Bubble? Flip Bubble:

Pointer Position: 25%