Ultimate Emerl

Ultimate Emerl is Emerl at his most powerful. After gaining the seventh and final Chaos Emerald from Shadow, his old programming activated, saying "Show me your power. Or I shall not obey. I represent all things, and shall become Gizoid, the conquerer of all." With that Shadow used the keywords created by Gerald Robotnik to deactivate Emerl's programming. "Bring hope to humanity." With those words, Emerl becomes his old self, and Shadow asks Emerl to battle him one last time of which Shadow emerges victorious. After the battle, Emerl asks to see Sonic and the others, Shadow then replies that he'll battle Emerl again once he beats eveyone. After beating Sonic, Sonic says that he was holding back and the gizoid returns to Shadow to fight him. Emerl wins. After beating Shadow, Sonic appears and teams up with Shadow, thinking that Shadow wouldn't give Emerl a big enough challenge on his own. Emerl then battles the two hedgehogs and wins.

Trivia

 * The only thing different about Ultimate Emerl is that the "eye" on his forehead opens, revealing a blue eye panel and black "pupil".
 * After gaining the last Emerald, Emerl's "eye" is still closed during his side views. Only during his front views is his "eye" open.