Greenbots

The Greenbots are a group that appears in the Sonic X comic series published by Archie Comics. They were a trio of green energy-powered robots created by Dr. Eggman.

Archie Comics
When Dr. Eggman was using the Greenbots to drain energy from power stations, Sonic the Hedgehog and his allies confronted the trio of robots, and battled them in an attempt to defeat them. However, Eggman had his robots tap into the power of the Master Emerald, causing them to fuse with Chaos in order to form Chaosbot.

Fused with Perfect Chaos, the Greenbots helped Eggman control Perfect Chaos as it rampaged across Station Square until Super Sonic destroyed the Greenbots and freed Perfect Chaos.