Kegler apparently blew himself up with a bomb. I do not know of the reasons of why he did this though but I'd assume it was to protect Hyuuga from the incoming invasion of Swabbies since Hyuuga was the only one who has the necessary weapon that would damaged Mutiny greatly.

Here's Red and Barbarax with their Saber and Axe locked together
Here's a shot of Green firing his Transdagger Blaster at Swordter
Swordter is destroyed due to injuries from Green's powered-up Saber attack he landed on her.
Here's Barbarax with a big bottle
Here's a shot of Grunchor going to get a bite to eat Yes that is indeed Barbarax that he's about to eat
Here's the new form of Grunchor