Finally won!
If I had known *that* was the final battle's victory condition, I probably could've won faster, instead of conserving my SP to try and win like a regular battle!
SPOILERS on how to win! EDIT: Oh, wait. Nevermind. I see what the Tunnels are now. And the Hat and other slots are getting some use.
If this was in the Cram Jam version, congrats! Wow, tons of battles! Longevity!
Just take out the troll. Just go Hunter Party, make everyone a super strong Sniper, and just focus on him.