The Eye of Cthulhu and the Slime King is one of the first bosses in the game Terraria. The Slime King has a chance to drop a slimy saddle, this is used to summon the slime mount. When fighting, you will eventually hit the skybox which will knock you off of the Eye of Cthulhu. The skybox size varies depending on the size of the world you picked. This video will tell you how effective the slime mount is against the Eye of Cthulhu in a small world.