Originally Posted by
Light of Justice
And Batman Ninja. I haven't watched the movie yet though, because of Jason's mask. Hell, it's even worse than Jason's shiny dildo mask, I can't contain my laughter.
But yeah, disregarding the minus, Batman Ninja and Young Justice, in my knowledge, are the only adaptation medias that included all 4 main Robin.
Hell, forget about adaptation, we can count with one hand of how many times 4 main Robin are joined together on comic universe. I only remember Robin War and Batman&Robin Eternal. The others are either missing one Robin or too much focused on one Robin (Robin Rises, Titans of Tomorrow).