Honestly, I’m vaguely tempted to offer Snowcone for this, since her many game overs mean she can be depicted dying horribly in a multitude of ways without it actually going against canon.
Alternately, Wawa, who will canonically(?) be drowned by Snowcone so if he dies to robots that’s pretty clearly non-canon. Wawa is also very good at tormenting other fluffies and killing foals though, if you’d rather take that route. Both are in my OC list (#3 and #4 respectively).
Technically, Crimson is already dead and in Hell for his many MANY crimes of rape and murder. But if you want to resurrect him or have him face some Hellish torture then go for it
Got a hunting friend fluffy that’d be eager to cut loose and “play” with some fluffies unhindered. Don’t know if that’s something you’d like to include.
Just make sure to have him near/with a red flower, because in “the story of flowers”(the story for my fwufftober that I introduced him in) he always has a red flower or so by him.
Probably thinking that the robots are neat and wondering if he can join in the fun like: “Hey robot! You got a weapon I could borrow?” -Robot plucks a sledgehammer out of their body, hands it to him- “SWEET!”