Metalman has a big fist that is a legendary technique and can fight Knightman. Knightman is just not a good enough fighter to defeat Metalman and never will. Metalman wins.
Tania has some cards but none of them are strong enough to handle Bakura. Bakura is just too powerful for Tania to even get one hit in. Tania is doomed. Bakura wins.
Roll may have crossfusion but it’s not enough for her to defeat Metalman. Metalman is just too strong for her and can’t lose. Metalmlan rarely loses and won’t lose now. Metalman wins.
Bugriser has skills that would make Bones wonder if he was on the right side. Surely someone as powerful as Bugriser could not be evil. Alas he is and Bones would lose. Bugriser wins.
Metalman has a metal fist that he can use to fight with, But Magicman has magic and a good durability that lets him have the will to survive. Magicman is pretty tough, But. Metalman wins.
Well Donald can’t handle the power of Gon. This is now Gon’s 200th match and he wins it of course. Gon hasn’t lose for quite some time now and Donald can’t win. Gon wins.
Metalman has a super fist that he can use to punch people with and it actually works over half the time and can beat Numberman with such speed that he wouldn’t know what hit him. Metalman wins.
Bones has a phaser that he can shoot at Giant Octopus. Giant Octopus may be big but after some phaser fire then Giant Octopus is gone. This Octopus isn’t doing good. Bones wins.
Bowlman has bowling balls that he can throw at people to knock them out or elimanate them. Gateman has gates that he can jump inside and hide in but they won’t help for long. Bowlman wins.
Goku has super saiyan and can defeat Bastion pretty easily. Bastion just doesn’t have what it takes to defeat Goku. Goku has beaten many foes. Goku wins.