Pixel fonts

Just to give to my entry a more arcade-ish flavour, I'll use a pixel font (AKA bitmap font, or raster font) taken from arcade games:

http://bmf.wz.cz/
http://pinocchio.jk0.org/nes/8x8s.png
http://qtchicks.hp.infoseek.co.jp/fonts.html
http://orangetide.com/nesdev/gamefonts/

Just check these sites and you will find a font that fits your game for sure.
About copyright issues, I have found that, at least in the USA, typefaces are not copyrightable and scalable fonts are copyrightable. Because a pixel font is considered a typeface of a scalable font, then it is not copyrightable. More infos here.