Like usual, no idea whats going on here. I think Chaos is trying to fight Catastrophe or something using the Bio Blaster from Final Fantasy 3/6. It doesn't work and it's because the hose was missing? So Calamity runs up with it to reattach it, and together, they'll get thier butts collectively kicked left and right.
(Imagine Hank and Dean going up against Brock and you pretty much have the 'fight' right there. Although I prefer the term "unapologetic massacre." )

This was drawn by  tanukiman88