CP6 is a sprite from a game which was deleted from the hard disk. Just before being sent to the trash bin he managed to transfer his bytes to a forbidden sector of the system RAM. However, he must hurry and find his way to the Backup System before the Garbage Collector finds him, or the User turns off the system. To do so he must gather "Access Tokens" which grant him write access to the I/O functions of the Backup System.
By the way, CP6 can't jump (his jump code is severely damaged and now it's scattered across the corrupted sectors of the RAM) but he's really fast on his feet!