Mazin Saga: Mutant Fighter is a beat em'up/versus fighting game based on the Mazin Saga manga by Go Nagai.As Mazinger Z, the player must fight mutants and robots. Levels are split into four sections the first three see a human sized Mazinger-Z in a side scrolling beat em up and the fourth sees Mazinger Z as a giant robot to battle the boss of that level in a one on one fighting game style battle Source: Wikipedia, "Mazin Saga: Mutant Fighter", available under the CC-BY-SA License.