The Egg Hammer Tank 2 (エッグハンマータンク2 Egguhanmātanku 2?) is a mech built and controlled by Dr. Eggman and is the first boss of Sonic Advance 2, that appears at boss act of Leaf Forest. The player has deal eight (six in easy mode on) hits to destroy it.
Egg Hammer Tank 2, as the name replies, is an orange tank with two arms. One arm is actually a spiked-hammer that is gray and yellow, while the other arm is a real arm (during the boss battle, it holds Cream the Rabbit and Cheese) which is gray and has spikes. The wheels on it makes it similar to a monster truck. It has orange headlights, black and red tires, and a blue circle inside the vehicle.
The player has run towards the Egg Hammer Tank 2 and manage to attack the cockpit to deal damage. The mech's only attack is by slamming its hammer down but it takes a while to bring it back up. The hammer has three points, where it smashes. It can neither smash far away the screen, to the center part or near of the vehicle. The hammer smashes one of these parts during the battle.
After hitting four times, it goes to pinch mode where hammer of the vehicle starts now smashing to the point depending, where the player is moving during that time. After another four hits, the driving vehicle gets destroyed and the player has cleared the boss act of Leaf Forest and is able to move on to the next stage. After Sonic destroys Eggman's mech, Cream hangs on to him while he's running.
Egg Hammer Tank 2 later appears in XX stage, that is boss rush before the final boss of the game. It has same attack patterns and only takes four hits to get destroyed again. As shown when fighting it first time as Sonic, the mech has an arm with Cream the Rabbit inside its grasp. After destroying the vehicle first time and the single cutscene, Cream would be playable character since then. Cream is not seen in the boss fight if the player is beating the boss after the first time playing through of it.
- The Egg Hammer Tank 2 is an upgraded version of the Egg Hammer Tank.
- This boss was dubbed the Egghammer II in Prima's Strategy guide.