Star Wars: The Clone Wars - Republic Heroes didn't have online co-op when it shipped but now it does. Krome Studios has released a free patch that adds the feature to the game.

Republic Heroes is an action-adventure game based on the animated show The Clone Wars. Players step into the role of a Jedi Knight or Clone Trooper to battle the likes of Count Dooku. Up until now, it only had local co-op.

The online co-op patch was revealed by LucasArts' Twitter. They note that the patch is only available for the PS3 and Xbox 360 versions of Republic Heroes. There's no mention of a similar update being released for other platforms even in the future.
Minecraft Is Finished With Legacy Consoles games 3y Minecraft Is Finished With Legacy Consoles Will Usher
Apparently The Xbox 360 Is Still Being Supported games 3y Apparently The Xbox 360 Is Still Being Supported Ryan Winslett
DC Universe Online Is Shutting Down On PS3 games 4y DC Universe Online Is Shutting Down On PS3 Will Usher