Egg Rock Core Zone

Egg Rock Core Zone (MAP31), abbreviated as ERCZ, is the final zone in SRB2: TLL. It is a boss fight against Brak Eggman.

Walkthrough
Brak Eggman has 12 health points and is surrounded by an electrical barrier that prevents you from damaging him. He will not attack until he laughs; after laughing, he may randomly attack at any moment, so stay on your guard. In addition, the lower his health, the faster he'll walk, and the shorter the time between finishing an attack and starting the next one will be.

Brak Eggman has two pairs of two attacks. From 10-12 health points, he'll only use the first pair, and from 1-3 health points, he'll only use the second. In-between, he'll randomly choose between the two, opting progressively more for the second pair as his health decreases. After being hit, however, he will always use one of the first pair of attacks, regardless of his current health.
 * The first pair:
 * A flamethrower attack, leaving flames on the ground. The flames will linger for ten seconds before dissipating.
 * A missile attack, where he shoots three rockets directly at you, leaving behind some flames where they hit. The missiles have extremely high knockback, so be sure not to get hit.
 * The second pair:
 * A bomb-lob attack. The bomb will slowly bounce to a stop, after which it shatters into 7 smaller bombs that each spread flames over a large radius.
 * A sniping attack. To avoid this attack, you need to break line-of-sight with Brak Eggman within roughly two seconds (you will know you're safe if the targeting reticule isn't directly on top of you). Barriers will pop up from the ground to give you some cover.

Three pipes are installed in the arena. Occasionally, one of the pipes will start to drop lava. Lure Brak Eggman into the lavafall to short out his electric barrier. Once it's gone, jump at him to hit him. He will retaliate to each hit with one of the first pair of attacks, and cannot be hit again until that attack has ceased. His barrier will stay down for twenty-five seconds before respawning; it flickers during the last five seconds, but it is still safe to attack him during this time. Once the barrier has respawn, another pipe will start dropping lava, allowing you to repeat the process. After nine hits, the walls of the arena will crumble, making his missile attack even more dangerous. After three more hits, he will be defeated, completing the level and rolling the credits.