SixSponges is a mutation between Spongebob and Patrick. They seem to have forgotten all memories of their old selves. Patrick and Spongebob have no eyes and they seem to be melting.
They can use orange and blue bones, and Patrick is able to use his blasters.
They have none because this AU doesn't exist.
The "Everything's HAPPY" line is a reference to the papgamate from HELP_tale.