Marble Zone boss

The Eggmobile is the boss of the Marble Zone in Sonic the Hedgehog (1991). It is piloted by Doctor Eggman and is equipped with a tube that drops fireballs from its underside.

Description
The boss battle takes place on two stone platforms, on either side of a pool of lava. Eggman will drop a fireball on each platform in turn, temporarily covering it in flames, forcing Sonic to jump between them.

The machine will be destroyed once it has been hit eight times, allowing Sonic to open the Zone's Egg Capsule and complete the level.