Yaiba Robo + Hibikime → Cyber Soldier

Yaiba Robo + Meteor Dragon → Metal Dragon

Machine King + Wing Eagle → Crimson Sunbird

Machine King + Punished Eagle → Crimson Sunbird

Machine King + Skull Red Bird → Crimson Sunbird

Machine King + Queen Bird → Crimson Sunbird

Machine King + Peacock → Crimson Sunbird

Machine King + Skullbird → Crimson Sunbird

Machine King + Monstrous Bird → Crimson Sunbird

Machine King + Niwatori → Crimson Sunbird

Machine King + Winged Dragon #2 → Crimson Sunbird

Machine King + Crow Goblin → Crimson Sunbird