A simple game called "Crazy Circles" Click/tap the circles before they disappear. If you do it fast enough, you earn a combo bonus. Don't touch the polygons. Bonus circles (red or green) will reduce your mistake count.
Soundtracks used in the game downloaded from Opengameart.org:
Snowfall by Kistol Delusion by Alexandr Zhelanov, https://soundcloud.com/alexandr-zhelanov Spirit Waltz by HorrorPen