Fast confirmation, easy to exchange with tickets. Amazing ninja park we had a blast! Spent 4 hours there with kids 12, 9 and 5yo. Spent extra money to rent ninja costumes first thing upon entering (1.1k yen for elementary kids, 3.3k yen for adults) then went picture taking, running around and watching all three shows. Was such a surreal experience, felt like we were transported to a different era. Loved it so much! (Do bring your own katana if you want to match your ninja outfit to avoid having to buy there. And the puzzle house/ maze is a must! Love love love!