Ratbat (KOU)
| The name or term "Ratbat" refers to more than one character or idea. For a list of other meanings, see Ratbat (disambiguation). |
- Ratbat is a rocker from the Knights of Unicron continuity family.

Though he enjoys rocking out in his normal form, Ratbat knows that he truly shines when he performs as Smooth Jazz's keytar. Ratbat previously yearned to join the Knights of Unicron, and thanks to his friends, dedication and talent, his ambitions have finally been realized! That is, until the band inevitably splits up again...
Fiction
Behind the Music
During his time as one of the Knights of Unicron, Ratbat served as Smooth Jazz's keytar. Following the band's dissolution, Ratbat became Soundwave's protege, alongside Rumble. The two of them became a pop duo, until an audio-box synching scandal brought them down. Behind the Music
Games
Transformers Legends
Ratbat auditioned to join the Knights of Unicron alongside his friends Laserbeak and Smooth Jazz. After a series of grueling try-outs, the three were finally accepted into the band. What followed was years of thrashing and face-melting rock 'n roll! Until petty infighting split up the band. Bummer. Knights of Unicron
Toys
Knights of Unicron
- Smooth Jazz
- A redeco of Animated Ratbat, Ratbat is a black keytar that turns into a bat. He comes as an accessory with Smooth Jazz. Ratbat has 5mm pegs on the face of the keytar which can plug into the corresponding pegholes on Smooth Jazz's roof, forearms and hands, plus his legs are sculpted so as to fit on grooves on Smooth Jazz's spoiler. Ratbat's articulation consists of rotational joints in the middle of each wing and a shallowly-ball jointed head.

