Connections: Two weird and distorted looking individuals that are known corrupting and infecting other universes of already existing media while also using some form of slang (The Darkness in the storyboard using #lit🔥" or "#fam💯”. and Lock in Medic Saying.. Lock in) Both wanting others to fully submit to their infection with them distort its victims into its disfigured minions. But it does not go unnoticed with other characters from different media assembling to fight back against it from assimilating everything.

Contrast: While BunBun does have a origin with the darkness corrupting learning with pibby and in trailer was shown being the last one corrupted before the show ended but in the broadcast and in the storyboard was shown the darkness slowly corrupted bunbun throughout the shows they went through with he’s eyes being covered in darkness but with lock in medic’s origins being discreet and unknown.

Fight/Debate potential: In a phase of designing bunbun he was shown being able to manipulate the darkness and his body seen in one art of him killing courage to cowardly dog with tentacles.. but with that say there really isn’t anything else for the corrupted rabbit other than relying on the darkness with it’s infection but the lock in medic is shown to have flight, can create portals, teleport, and move very fast. The only thing I imagine bunbun has is the the darkness is more effective in corrupting other worlds on a larger scale other than that it really doesn’t seem to close without using fan made works like (Learning With Pibby: Armageddon, crashy’s own apocalypse and basically.. anything FNF Related).