Folks need to quit posting curbstomp threads.
Goku wins. No way in hell Gaara has any means of holding up against any of the Saiyan's attacks.
That's what we call a Game Mechanic. Something you can turn On and Off in the Options section, as well as make the blood Green if you wished. The proof is self-evident. Removing his Face to show a skull isn't an illusion. He is literally skin containing his overworldly being. and last I checked, skeletons don't have blood vessels.
I'm not saying he does open portals. However, Scorpion can, if he so chooses to, return to the Nether Realm under his own power, much like teleportation.
Also if you remember in some of the earlier MK games, one of Scorpion's moves was to grab the target and slam them right down into the Nether Realm (the area full of fire and skeletal bodies on poles, where you see more Scorpion-dressed figures in the background). So, even by going by an in-game ability/technique, that showed Scorp could BFR down into the Nether Realm with an intended target.
Moloch and Drahmin did not slaughter Scorpion. The fact it took both of them to take him on speaks volumes about how powerful Scorpion was at the time.
Also, no. Alucard could not eat him. Scorp isn't some pissant undead vampire. He doesn't actually have blood. He's a demon Specter that's filled with Hellfire.
Physically speaking, Scorpion outpaces Alucard in Strength and durability. Honestly, Alucard is as durable as Jello. And Hellfire, along with Fire fire, does burn and searing Alucard's body of blood into ashes could very well kill him.
And once more, since you continue to ignore it; Scorpion can BFR him. That's it. All Scorp has to do is Teleport, grab and drag him into the Nether Realm.