Hybrid Giga: Mountain Rampage is an action-packed adventure game where you can play as a giant and attack the whole of Primal Island. The action takes place in a secluded mountain in the middle of the island. There, the scientists from Hybreed have been experimenting with different species of dinosaurs. The results of their work are the deadliest creatures of all time, and their rage is fueled by their evolution and power. The giant monsters are armed with deadly combat capabilities and the genetic sequences of hundreds of thousands of different species. They created the most powerful and deadliest creatures of all time, and their objective is to destroy all the humans. They can do it in a number of different ways.