Spell Up is a Google Chrome Experiment that is a spelling game. The game requires the user to speak into your Chromebook or laptop after you hear a prompt to spell a word. For every word you spell correctly, a growing tower of words is built, but spell it incorrectly and the tower comes crashing down. The game does allow users to eventually skip words that they haven't been able to spell correctly after a few tries. Spell Up has three skill levels to choose from.