Rising Sun is without a doubt my greatest disappointment in boardgaming. Everything went utterly wrong.
I love Blood Rage and love the japanese setting themes. When I learned a Blood Rage successor with a japanese setting was coming out, I was mega hyped. I read the rulebook, talked with my group, it seemed like a very nice fit. I ended up paying more than 200 euros for my Kickstarter pledge.
We played the game and we absolutely hated it. No one even wanted to give it another shot. I don't remember exactly what went wrong, but the teaming up + betrayal actions were a big turnoff for us. We played as 5 which meant someone was always left without a partner.
No big deal, the game was hot and it wasn't hard to find a buyer on BGG market. I shipped the game in the original packaging to the new owner but DHL sliced the package in half. The game ended up really badly damaged and I had to give a partial refund to the buyer.
Lesson learned, I never gambled on a big Kickstarter project again.