Upon first entering the room, the area appears to be empty, but soon after, Slime Eyes says that Link won't be able to find him. Zols start to fall from the ceiling and continue to come. Link can use the Pegasus Boots to dash into the walls of the room to knock down Slime Eyes, who is clinging onto the ceiling. At first, it looks like one giant eye, but after Link slashes it enough times with his sword, it slowly starts to split into two separate eyes.
Once they are connected only by a thread, he can rush into it with the Pegasus Boots, cutting off their connection. Both eyes then attack Link separately, each one occasionally jumping up to the ceiling and falling back down with a crash that temporarily stuns Link. Once he hits each eyeball with his sword until both eyes are defeated, Link is rewarded with a Heart Container and is allowed passage into the next room containing the Sea Lily's Bell.
- ↑ 1.1 1.2 "The Nightmare that lurks in the Key Cavern is called Slime Eyes." — Link's Awakening Nintendo Player's Guide, pg. 45
- ↑ "SLIME EYE" — Link's Awakening Nintendo Player's Guide, pg. 103
- ↑ "When you first enter the Nightmare's chamber, you won't see it anywhere because it's clinging to the ceiling." — Link's Awakening Nintendo Player's Guide, pg. 45
- ↑ " NEENER NEENER! You can't find me! NYAH NYAH!" — Slime Eyes, Link's Awakening.
- ↑ "Use the Pegasus Boots to crash against the wall and make it appear." — Link's Awakening Nintendo Player's Guide, pg. 45
- ↑ "Put on the Pegasus Boots, then charge the wall to make the Slimes Eyes appear." — Nintendo Power Issue 104, pg. 104
- ↑ "If you attack the single eye that appears, Slime Eyes will start to split into two parts." — Link's Awakening Nintendo Player's Guide, pg. 45
- ↑ "Use your Boots to charge into Slime Eyes until its creepy peepers are separated." — Nintendo Power Issue 95, pg. 67
- ↑ "Ram the peepers using your dash attack to separate them into two eyeballs, then poke each eye out with your sword." — Nintendo Power Issue 104, pg. 104