Aquabat

Aquabat is an Autobot Hydrobot from the IDW portion of the Generation 1 continuity family.

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

Aquabat transforms into both a hovercraft and a "weird, winged creature", one of two Hydrobots with these alternate modes.

Fiction

IDW Generation 1 continuity

Groove attempted to impress Riptide at Swerve's Lost Light "crewditions" by mentioning that he knew one of his fellow Hydrobots but couldn't remember his name. His description led Riptide to assume he was talking about Aquabat, but Groove said it wasn't Aquabat, it was the other one. Towards Peace