i say 1 think............................................................. fat!

To be blunt, this kicks ass. I would go for the whole ascii printable set.

Actually they didn't enlarge stuff 2X; the resolution was just so much smaller that the individual pixels were larger. These days you would want to draw stuff at a multiple of size though because on LCD monitors non-native resolutions appear blurred, not crisp as you'd want for pixel art.

This is quite competently pixelled and wouldn't look out of place in a game. However, why the backwards N? I could understand the choice if it was something that affected multiple letters, but in an otherwise standard font as far as basic letter forms go, it seems out of place.