Submarine Eggman


 * You may be looking for Submarine Eggman II, the boss of Oil Ocean Zone.

Submarine Eggman (サブマリンエッグマン) is the fifth boss in Sonic the Hedgehog 2. The player will face Submarine Eggman in the end of Hill Top Zone Act 2 and takes eight hits to defeat it. This floating submarine is piloted by Doctor Robotnik.

Although having the name "Submarine Eggman", it travels through lava instead of water. It resembles the Eggmobile with a gun mounted on top. Being mostly grey, it has black and yellow stripes and orange headlights.

Battle
The boss battle takes place on three small pieces of land with lava in between each area of land. Dr. Robotnik begins the battle by rising up from the lava lake on the right side. This Eggmobile has a nozzle at the top, which starts shoot fire once. After Robotnik shoots, he sinks back into the lava. Before Eggmobile has sinking fully, two fireballs come out of the lava onto the land, that temporarily sets the areas on fire. Robotnik returns in a few seconds to either left side of the arena or the same spot, where it sink before. Eggmobile then processes to repeat the attack pattern until it is defeated.

Like the other Eggmobiles in Sonic the Hedgehog 2, Submarine Eggman takes eight hits to be defeated. After that the player has to watch out to not fall down the lava even after defeating the boss vehicle, and head to the capsule.

Trivia

 * The player is able to keep hitting Eggmobile for all eight hits to destroy it faster. However the player may also fall to the lava after defeating it and can either lose a shield, rings or even life.
 * The boss arena is similar from the other boss fight at Marble Zone of original Sonic the Hedgehog.