Robot Unicorn Attack

Robot Unicorn Attack is a side scrolling platform game with gameplay that speeds up as it progresses. The player controls a robotic unicorn and aims to prolong gameplay without falling off the stage, crashing into the edges of platforms, or colliding into crystal stars without dashing into them. Jumps and dashes can be chained together while the unicorn is airborne. Points are earned during playtime, by collecting pixies, and by destroying crystal stars by dashing through them.

Consecutive collection of pixies or crystal stars adds progressively higher incremental scores to the total. Upon missing a pixie or star, the increment resets. The player has three lives (referred to as "wishes"), and the sum of the scores from each life counts for the player's final score.

Ivan Williams of 1UP.com stated that, "Whether it's the song constantly on a loop or the simple desire to get a better score than the millions of other gamers playing, I challenge anyone to play Robot Unicorn Attack and not have that game pop into your head every now and then."

In reviews of the major flash games of 2010, Eurogamer writer Kieron Gillen said, "Like a comet made of gold, glitter and Lady Gaga's eyelashes, Robot Unicorn Attack circled the Earth and filled the firmament with its irresistible radiance for the whole of 2010. It changed lives. It challenged sexualities. It involves pressing two buttons. It is undoubtedly the greatest game of all time that features a Robot Unicorn unless you're a metalhead who digs its sequel."