--- THIS PROJECT IS GLITCHY SINCE SOME UPDATES. BETTER VERSIONS EXIST AT @CodeLegend . . Just type! You can use shift for symbols or capital letters. LEFT ARROW for BACKSPACE Plus... Colors! (although they're glitchy since some update...) If a letter keeps repeating, press whatever letter it is. This is a glitch between Adobe Flash and Scratch. It happens if shift is pressed or released whilst holding another key. Congrats, you actually read the instructions... unlike some people.
The font is TI-84. Thanks to @GummiBearTay, this is the FIRST front-paged project of 2014! YAY! Thank you! If you See Inside, you may notice I have a block inside of a <key press> block. This is a hack, and instructions can be found here: http://scratch.mit.edu/discuss/topic/1810/