Hello, I would like to know how I can access the old games of the game make 8.0 and 8.1 in the old yo yo games? because there were many cool games there that I would like to find again, can you help me?
You mean the sandbox? Various attempts have been made to backup, re-host or clone the sandbox and its contents. These are usually taken down quickly due to copyright concerns. For the same reason, members of this community will not be able to provide you with any more direct pointers or information without automatically getting in trouble for it.
You can google for yoyogames sandbox archive projects of varying qualities. Some have many games, some have few, some are fast, some slow. I've found a few of my favorite games again, and some are still lost to the void.