Tap boss

Fight an army of dark forces and save the world. It's helpful to hit the screen as fast as possible. You have to defend from monsters for 1000 days in this game. It said to destroy monsters and seal the gates of the Underworld. To destroy enemies, you should show the speed of your fingers. Use the heroes' ability to help them. If you have an army of mercenaries, you can attack your enemies. There is a game that includes five heroes and 30 strong mercenaries.