Ikari Warriors in Mutant Nation 20XX: Special Edition

Good old school action game where you choose one of two characters. Then the real fighting beings. When you're looking for the main bad guy, you visit many parts of the world and find action everywhere. The game is designed so that in each location you have to face a large number of enemies. After dealing with them, you move and repeat everything. Collect weapons after death and use them for a limited time. Some enemies are really pussies but others are crazy. Whenever you want you can choose another fighter and continue... XDDD