there should be shields in narrow one:
shield one: 100 coins, blocks 10% of all incoming arrows
Shield two: 200 coins, blocks 20% of all incoming arrows
Shield three: 300 coins, blocks 30% of all incoming arrows
Shield four: 400 coins, blocks 40% of all incoming arrows
Shield five: 500 coins, blocks 50% of all incoming arrows
Fearless shield: 9999 coins, blocks 90% of incoming arrows