Bolt Penguin + Mystical Sheep #1 → Tripwire Beast

Bolt Penguin + Gruesome Goo → Bolt Escargot

Bolt Penguin + Serpent Night Dragon → Twin-headed Thunder Dragon

Bolt Penguin + Mikazukinoyaiba → Twin-headed Thunder Dragon

Bolt Penguin + Meteor Dragon → Twin-headed Thunder Dragon

The Immortal of Thunder + Boo Koo → Kaminari Attack

The Immortal of Thunder + Maha Vailo → Kaminari Attack

The Immortal of Thunder + Musician King → Kaminari Attack

The Immortal of Thunder + Spirit of the Mountain → Kaminari Attack

The Immortal of Thunder + Eldeen → Kaminari Attack

The Immortal of Thunder + Skelgon → Twin-headed Thunder Dragon

The Immortal of Thunder + Tyhone #2 → Twin-headed Thunder Dragon