A stage fatal could be that you get thrown into a sand dune and a giant creature thing eats you. It depends on if the outside stage looks cool or not.

I like the effects of sand kicking up when you fight, mabey threre coule be things on the stage you can interact with like cactuses and creatures running around, it would be cool if there was a stage fatality where someone gets sucked up in quicksand.

I'd like too see more variation in the stages in MK6 eg indoors, outdoors, shapes, walls.

If i'm not mistaken mk4 had alot of indoor stages while mk5 had alot of outdoor ones (haven't counted them). I'd like to see some that were like rooms with walls on all sides and huge areas like a desert or even like a castle where you can fight throughout.