1. There are many unique levels in the game, and the old king of each level will be in different difficulties; 2. By observing the layout of different organ scenes, we can think out the way to save the old king and put it into action; 3. There are physical limitations in passing through customs. Each time you pass through customs, you need to consume physical strength. If you win, you can get a physical reward. Rescue King,puzzle game,brain training,HTML5 puzzle,hypercasual game,king rescue,mind puzzle,rescue game,difficulty levels,physical strength,strategy,challenging puzzles,rewarding gameplay,puzzle adventure,brain workout