|Featured in||Sonic Adventure|
E-103 Delta is a robot created by Dr. Eggman as part of the E-series. Like all the other robots created in the E-series, Delta was sent out by Dr. Eggman to search for and capture Froggy, who had swallowed a Chaos Emerald. Delta is unsuccessful in his mission and eventually left in the Windy Valley where he encounters E-102 Gamma and destroyed, freeing the bird trapped inside him.
 Boss Strategy
Defeating Delta is a simple matter of hitting him 5 times. He is very similar to E-101 Beta, only faster.