This is an excellent entry! It's a really creative concept which translates beautifully into a simple, yet rewarding arcade game. The gameplay is engaging: little enemies crawl across your keyboard on screen, and you have to "squash" them by pressing the real keys on your keyboard. Over the time I played it, I developed a few strats like double-hitting enemies with two keys. This shows that the game is well thought-out and really fits the theme.
I would say that something that could be improved slightly is polish. Once you run out of lives, pressing play again does not replenish your lives, preventing you from playing again unless you refresh the page. Otherwise this is a very solid game!