Move the blocks using the arrow keys. Merge a 1 and a 2 to get a 3. Merge anything higher 3 or higher with itself to double it's value. The goal is to make a 12288 block but you can keep going until you get a 196608 in this version. Hint: choose one direction and don't ever press that button! it makes it a lot easier :)
Huge credit to both @MattLeeds on Scratch and @ThreesGame on Twitter for inspiration Note: Don't be scared if a 6, 12, 24, etc. pops up in the Next queue, it's normal but extremely rare. There's a 0.1% chance to get a 96.