Stickman Hook is a physics-based platformer game where the player controls a stickman character that swings from hooks and tries to reach the end of each level. The game features challenging levels with different obstacles such as spikes, saws, and moving platforms. The stickman is equipped with a grappling hook that can attach to surfaces and swings him forward. The goal is to use the grappling hook to navigate through the level and reach the end as fast as possible while avoiding obstacles and collecting stars. The game has simple controls, addictive gameplay, and vibrant graphics.