From Sonic Retro
|Game: Sonic Unleashed|
|Affiliation: Dark Gaia|
This is an enemy similar to Dark Bat and the Dark Bat Sniper. In appearance and attack mannerisms though, it is more similar to the Lightning Master. It has a greenish tint, and attacks by launching an electric attack, momentarily stunning the player as well as inflicting damage. If the player takes extra care not to get shocked, they can use the Thunder Bat to cross chasms just like any other Dark Bat.
|“||Even harmless Dark Bats can grow wild after absorbing too much of Dark Gaia's sinster energy.
This strain of bat releases a high-voltage blast periodically. Time your contact carefully, or you'll get a nasty zap!
— Encyclopedia, 360/PS3 version