Blue Marine Zone boss

The Blue Marine Zone boss is a vehicle that appears in Sonic Blast. It was a submarine created by Dr. Robotnik. It was used by the doctor to combat Sonic and Knuckles.

Description
The Blue Marine Zone boss is a submarine consisting of a capsule similar to the Egg Mobile. It has a protective glass cover, grey plating and a blue light on the front. It also has a harpoon gun on it's underside.

Powers and abilities
Robotnik's submarine is able to fire harpoons from a launcher on it's underside and is able to travel underwater.

History
In Sonic Blast Dr. Robotnik used this vehicle to attack Sonic and Knuckles when the duo where passing through Blue Marine Zone. In spite of Robotnik's efforts though, his vehicle got destroyed by the two heroes in the end.