Just finished climbing the tower, and want to share my thoughts.
First, the last level was the easiest by far. It’s the end so I didn’t care at all about oni shields! That being said, the frequency of oni shields is just stupid. It was very rare that I would get a round without an oni shield on the board. I enjoy the concept this mechanic. At first it was enjoyable to try and puzzle out how to get rid of the curse tiles. But the execution was too heavy handed. It turned what could have been a challenging and fun mechanic into a stressful and frustrating ordeal. I think that either less frequent curse tiles would be a huge step in the right direction. Maybe guarantee that a new tile won’t show up for 2 full turns after 1 is destroyed to give players some breathing room.
Second, I really liked the way ninja tower energy was kept separate from world energy, and refilled daily. You get enough energy to do every level once, and you are discouraged from trying to climb it all on day 1. If you fail a level, energy flasks are cheap enough a F2P player could afford it if they want to. I could have finished the whole thing on the energy provided if not for a couple of dumb mistakes that required me to repeat 2 levels (don’t climb while exhausted kids! Brought wrong colors, because of course red is strong against blue!)
The fights themselves were just right. Not easy, but not insanely hard either. I never felt that any fight was unwinnable, though I had to pay more attention to curse tiles than to killing enemies. Bosses were tough and strong, but not too tough and strong. It was nice to see fights designed to make you use battle items.
The special rules were also a lot of fun. No need to change any of them. Blessings were really fun to have, and the challenges (poison, weak floors etc) were just right. Not weak enough to ignore, not strong enough to be insurmountable.
In summary- the only thing I’d change about the event rules is the frequency of Oni Curse tiles. The rest of it was good. I honestly didn’t pay attention to the rewards until I’d finished the climb. Of course I’d like more rewards, but I’m not complaining. The Ninja Tower has potential to be one of the most fun events in E&P. Just fix the ^%&^% Tile frequency!