The purpose of this is to determine if you can create a viable cloud variable-based game without encoding or decoding. With the 'wait for cloud var cooldown' custom block I made it was somewhat workable. However, I think this kind of queueing should be done automatically- see my suggestion on the forums: https://scratch.mit.edu/discuss/topic/677347/ The thing is pretty buggy, but it can be used for a game of Pong if you don't care about the scoring. If nobody's online, put two windows side by side to test it out :)