Orbot and Cubot

Orbot (オーボット) and Cubot (キューボット) are two small robots from the Sonic the Hedgehog series created by Doctor Eggman to be his assistants. Orbot is a red orb-shaped robot that usually points out Eggman's mistakes, sometimes inadvertently insulting him. Cubot is a yellow cube-shaped robot with a failure in his voice chip that makes his voice and accent change.

Worlds Collide
Orbot and Cubot appear briefly usually doing tasks for doctors Eggman and Wily such as giving information, serving coffee, and assisting in building machines.

Aftermath
Orbot and Cubot, along with Dr. Eggman ended up at the Efrika Plains, along with the remains of the Egg-Wily Machine X.

They along with Sonic the Hedgehog, Blaze the Cat and later Tails are the only ones to recall the events of Worlds Collide. (Sonic the Hedgehog #252 & Sonic Universe #55)