Scarabs are based on Scarabaeidaes (also called scarab beetles), although they bear little resemblance to them. They have an ellipsoid-shaped light green body with a red plating across their forehead and back, and a pair of black-eyed black-rimmed eyes on the front. They also have no limbs, except for a pair of long insect legs on their rear for moving them around.
Sonic the Hedgehog CD
In Sonic the Hedgehog CD, Scarabs are found in Metallic Madness. In gameplay, they simply move back and forth, and have no offensive attacks. Instead, if the player tries attacking a Scarab from the rear, it will crab the playable character (without causing damage), force them into the Spin Attack and launch them in the opposite direction. Occasionally, they may also carry Item Boxes. To defeat a Scarab, the player must attack it from above with the Spin Jump.
In the Bad Future or sometimes the present timeframe of Metallic Madness, Scarabs have not decayed, but move much slower. Like every Badnik in the game, they are powered by Little Planet flower seeds which will pop out of them when they are defeated.