FNF vs. Blue Roblox Rainbow Friends is a Friday Night Funkin Mod in which you must rap combat Blue while hiding inside a cardboard box. This great FNF Mod was developed by the developers of the Poppy Funktime Mod (VS Bunzo Bunny).
Blue is the first antagonist in the Roblox Rainbow Friends Game. He appears as a giant humanoid wearing a crown, with a button eye, and drooling. He wanders about Odd Worlds, an entertainment park, looking for players. He will go after any players who are not hiding inside a locker or a box. You can hide when he is gazing at you and not get murdered on some occasions.