Ring 4: The Cavern

Ring 4: The Cavern is the fourth ring in RapsterZeber's Towers of Hell. To unlock it you need to have beaten 15 tower in World 1, and at least one of them needs to have the Difficult difficulty. In it you are in a huge cavern with a lake sitting in it that the citadel is coming out of and a tunnel high up that the Soul Crushing tower is in. The towers are all out in the open, with the Baby Towers in front of you, the Normal Towers to the left of you, the Advanced Towers to the right of you and the Pro Towers behind you.

Baby Towers
Tower of Crossing the Crazy Caverns: Hard

Tower of Trapped Within a Crystal: Hard

Tower of Taking the Wrong Path: Difficult

Normal Towers
Tower of Chaos Trip: Difficult

Tower of Up and Down: Difficult

Tower of Rageful Rainbows: Challenging

Advanced Towers
Tower of Egg Cracking: Challenging

Tower of Mountain Mining: Challenging

Tower of Client Object Spamming: Intense

Pro Towers
Tower of Cavern Traversing: Intense

Tower of Up Down and All Around: Intense

Tower of Amazing Jumps: Remorseless

Secrets
If you walk to the lake that the citadel sits in, you can see Fidjo20 in it swimming.

In the Win Room you can do a corner clip into a room with a sign in it saying "RapsterZeber was here."

One the other side of the sign above the portal for the Tower of Amazing Jumps it will say "RapsterZeber was here."

If you go to the Advanced Towers you can do the Practice Obby which is worth of the Challenging difficulty. At the end of it you can drop off of it and if you are fast enough you can go through the wall of the pillar at the end of it, and inside of the pillar is the portal room for the Challenging difficulty citadel called the Citadel of Crystal Punching, which is 25 floors long.

If you go to the Pro Towers and walk 1,000 studs to the wall of the cave you can then do the Easy difficulty secret obby and at the end of it you can do a corner clip into the portal room for the Terrifying difficulty Soul Crushing tower called the Tower of Amazingly Outstanding Adventures.