Make sure you check out today's Google Doodle! They've made a clever little ghost-fighting game in which you have to defeat ghosts by drawing the symbols above their heads in order. You've gotta be quick so if you have a drawing tablet, it might make life much easier if you use it!
The doodle can be found here: https://g.co/doodle/ybe5ut or you can see it just by visiting the Google homepage.
P.S. Don't miss the little heart ghosts to the side which offer you life refills. <3