Playable headspiders and transposed particle fields

[Roomba]

then....then.......what if.........just..........what if..........

what if it was like the vampire/werewolf serum where you don't become an antagonist if you become the science ghost 

i hope this breakthrough in thought will help this idea come closer to fruition

People will go 'oh no a science ghost punch it'

The science ghost will go 'better defend myself, what a shame I only have one move that instakills people'

The crew will go 'the science ghost is on a rampage kill it'

The ghost goes 'better defend myself some more'

This scenario plays out almost every time antag powers on non-antags come into play, which is thankfully itself a fairly uncommon scenario. Anyone can grab the crown on any round and ghost themselves up.

That's not to mention the actual antags who would happily spend half the round being a near-untouchable rampager with the crown, then the other half eating the survivors as a science ghost.