I just saw that I had this group.
So Ultra mod is being updated check it out.

https://erdeppol.itch.io/nuclear-throne-ultra-mod

Panda will be a new character in the new update
Will function similar to chicken in the released game but has some random fun elements. And chickens teleporting weapon ulta is it's thronebutt making it a lot more fun to play and a lot more powerfull to compensate for not heaving a headless mode.

Next update will be released somewhere this weekend