My first Sonic the Hedgehog submission on the site!
There is a scan from the Hippon Super August 1991 magazine showing a currently undumped prototype of 16-bit "Sonic the Hedgehog" game, where we can see a different design of Buzz Bomber (also known by Japanese name Beeton) which notably has visors instead of normal eyes. I decide to recreate this design. Aside of the visor, this design seems to have different antennae and the bullet's "ready to be fired" sprite.
My sprites aren't 100% replicas of the ones from that prototype!