Are we pushing the rainbow envelope too far? You won't be able to help it with this one.
My editor insisted on the inclusion of Robot Unicorn Attack in this list but unrelenting personal bias means that Robot Unicorn Attack 2 is the game that makes the cut.
As Destructoid put it:
"Robot Unicorn Attack 2 is happiness. It is hope. It is always. It is yours."
Everything that made the first game so much fun is still here, and more beautiful than ever. Your robot unicorn's mane is hypnotic, a rippling rainbow battle flag as you face an unending path in two different worlds at war: one of Rainbows and Harmony and one of Ice and Wonder.
For a long while, this was a staple title in everything I praised about a free-to-play game. Sure, there were in-game purchases, but they weren't necessary, and did nothing to spoil the entertainment factor of running, jumping, and smashing your highly customizable robot unicorn to bits.
Recent updates have dimmed the wow factor a little, with video ad popups that make this game prone to crashing, but it is still my go-to for a quick and pretty pick-me-up.