Psyonix just announced Rocket League The Batman Bundle which will be available soon.
According to the developer, The Batman Bundle will be released on all platforms this coming March 2, 2022. This is will feature tons of content that is based on the iconic DC character Batman and his vehicles like Batmobile (2022), Batmobile (2022) Engine Audio, Batmobile (2022 Wheels, Dark Knight Matte Finish, Batmobile (2022) Boost, Batmobile (2022) Trail, a Reel Life Decal, and The Batman Goal Explosion.
Interested players who want to deck up their cars with The Batman content will be able to purchase the bundle in the Rocket League Item Shop. It will cost 1100 Credits and will be available from March 2 to March 8, 2022 only.
The Limited Time Mode Gotham City Rumble will be brought back as well for only the same time as The Batman Bundle. In this mode, Rumble mode is transformed and power-ups are now themed after Batman and his enemies. Use The Joker’s Boxing Glove, Harley’s Hammer, Poison Ivy’s vines, and more while fighting in Beckwith Park.
Rocket League is now available on PC, Nintendo Switch, PS4, PS5, Xbox One, and Xbox Series X/S.
Source: Press Release
