I really fucked up...

Turns out Hitler 3 sends cats in one at a time, it's been a while since ive fought him and I totally forgot. I cant seem to get through the fight, on account of the only cat there being a lump of shit. Losing or conceding are non-options, as I'd lose a massive soul jar that took way too long to farm out. Anyone have any suggestions? I'm totally willing to edit the save for this, losing the jar would be like another 10+ hours of grinding.

https://preview.redd.it/uqfc2alju1ph1.png?width=1870&format=png&auto=webp&s=c36d324cf3f2113f0c82564d6baefdade9245237