Iron Ball Eggmobile (Sonic Runners Adventure)

The Iron Ball Eggmobile is a recurring boss in Sonic Runners Adventure. It can be fought with any character in the game at the end of each playable chapter.

Boss guide
The Iron Ball Eggmobile is fought on four separate occasions. During each battle, the player automatically chases after Dr. Eggman in his Eggmobile. However, the Eggmobile usually stays out of the player's reach, meaning it cannot be attacked head on.

Green Hill
In Green Hill, Eggman attacks by dropping spiked balls so they fall directly down on the path. Simply jump over them when the approach the playable character. Meanwhile, red drill missiles will fly across the screen which the player has to dodge too. After launching a few attacks, Eggman will then charge towards the playable character. Hit the Eggmobile when it gets close with a Spin Jump to damage Eggman and make him drop both Rings and Super Rings. To defeat this boss, the player must hit Eggman a total of five times.

Desert Ruins
In Desert Ruins, the battle proceeds like a sped up version of that in Green Hill. This time around, however, when Eggman drops spiked balls, they will sometimes bounce towards the playable characters at a certain height. Simply stay on the ground to avoid these spiked balls. Eggman is also sometimes drop yellow balls that bounce and does harm like the spiked balls. By Spin Jumping into the yellow balls, the player can knock them back at the Eggmobile and damage it. To defeat this boss, the player must hit Eggman a total of eight times.

Lava Mountain
In Lava Mountain, the battle follows the same format as that in Desert Ruins, but sped even more up. In addition, the different balls that Eggman drops during the battle now bounce at varying heights. Those bouncing low must be jumped over to be dodged, while those bouncing high must be run past below to be dodged. To defeat this boss, the player must hit Eggman a total of nine times.

Sky Sanctuary
In Sky Sanctuary, the battle continues with the patterns from Lava Mountain at maximum speed. In addition, Eggman will now deploy spiked balls that can be suspending in midair or drop up to two bouncing spiked balls in succession that always bounce in the same manner as each other. To defeat this boss, the player must hit Eggman a total of eleven times.