The Egg Hammer (エッグハンマー,Egguhanmā?) is a large robot that first appeared in Sonic Heroes. While not common, these robots are some of the toughest enemies that can be encountered in their respective games.
On the console games, the Egg Hammers are basically an enlarged and more heavily armed version of the Egg Pawn. They are at least three times bigger than a regular Egg Pawn, possesses a grey, and silver color scheme, and wield a large hammer with an identical color scheme.
The Egg Hammers attack either by slaming their hammer down or swinging their hammers and upper torsos in a few 360° circles.
If the Egg Hammer chooses to swing their hammer, however, they will start to lose their balance once they are done swinging. At this point, the player can topple the Egg Hammer by attacking them, thus leaving them vulnerable to the player's attacks for a few moments.
The Egg Hammers first appeared in Sonic Heroes, where they can be seen in the following stages: Lost Jungle, Mystic Mansion and Final Fortress. They carry large hammers that they use to attack the player. They are immune to most attacks from formations other than Power, but can be temporarily stunned by Thunder Shoot.
Mario & Sonic at the Olympic Winter Games
It appeared as an enemy. It is the strongest enemy in the game, but also the easiest to avoid.
Sonic & Sega All-Stars Racing
To complete the Final Mission, you have to defeat the Egg Pawn Giant using power-ups.
The Heavy-Egg Hammer is simply a larger and tougher version of the Egg Hammer. It is heavily armored and cannot be hurt from any attack (aside from Team Blast). The player must find a way to knock the robot's helmet off before it is susceptible to damage.