Dragon Hunter Jump

Evil dragons are flying over the kingdom. You play as a hero armed with a lance, and your goal is to defend the dungeon from attacking dragons. Step on the dragons to jump higher and higher, till you defeat the devil bosses! How to play: Tap to jump. You can only attack vertically. Jump on a dragon, or hit him with your lance. You will die when you are hit horizontally (from the sides). Step on dragon to jump again. How many dragons can you defeat?