Bolt-bat

Bolt-bats are a form of Cybertronic wildlife. They presumably are easily shocked and amazed by new sights. As well, Sideswipe refers to Cybertronic bolt-bats, implying that there are also bolt-bats native to other planets.

It is unknown whether Mindwipe, Sonar, Ratbat and Nightscream classify as bolt-bats.