Deep Sea Zone

Deep Sea Zone is the third Zone of SRB2. It is visibly much harder than the previous two Zones and uses water as the main gimmick (hence the name). It will be completely redesigned for 2.2.

Overview
Deep Sea is set in some abandoned, moss-covered flooded ruins. It contains a lot of secrets and things designed only for a "red echidna". Eggman is partially to blame for the flooding and has infested the area with robots.

Acts
The first act is a rather hard one for the fifth level. The danger of drowning is always present. It contains multiple paths, each as hard as the other, and many hidden secrets for you to uncover and make the level easier. A lot of Knuckles-only things are included such as the secret flood at the end of this Zone. It also has three Emerald Tokens.

The second act formally introduces waterslides and Bustable Blocks. It relies mainly on traps instead of enemies to catch and kill the player. It also has a few puzzles which include stopping crushers with pushable objects, raising and lowering platforms on contact and even a Bustable Block Maze! It also contains three Tokens.

The third Boss Act is interesting. There are four pillars in an X shape and five tubes in a + shape. The room is flooded. Eggman will go into some pipes, shock the water and emerge from one and shoot at you. Hit him while you can. If you fall into the water, he will go down and shock it. After a while, he creates bouncy clones of himself to attack you as well. The level ends with an Egg Capsule.

Main things
The level is flooded. All the traps revolve around the water (even the crushers!). This is also the first level with formal waterslides, non-spindash Bustable Blocks, crushers, Bottomless Pits and Air Bubbles (used to survive).

Statistics
Enemies:

Jet Jaw, Skim, Big Floating Mine

Hazards:

Spikes, Crushers, Bottomless Pits, Drowning

Things introduced:

Water, crushers, Bottomless Pits, Air Bubbles, aquatic enemies, aquatic obstacles, break-on-contact blocks, pushable objects

Emerald Tokens: Six (three in Act 1, three in Act 2)

Acts: Three

Status: Complete

Trivia

 * This is the only Zone being completely remade for 2.2.
 * This Zone has the most Emerald Tokens, having six in total.
 * This is the only aquatic non-secret Zone.
 * This is the only Zone with two remakes included in the game. These happen to be the two Secret Levels (one of them uses DSZ's textures and the other keeps the water puzzle theme).