You know that font that Project: M uses for the CSS and SSS?  What's it called and where can I find it?

I've noticed that some Vault entries include an Ocarina Code that swaps sound effects between characters.
Example of what I'm talking about.
Are there any codes for making a character to not have any sound effects (or at least use sound effects from a character that has no true voice, like R.O.B., Game & Watch, or Power Suit Samus)?