Along with releasing refugees, destroying alien vehicles is also how you rearm guns, missiles, and special weapons. There are also three special pickups that enhance or detract from your robot's performance. Energia Mode gives you invincibility with a speed boost, Schizo Mode is invincibility with reversed controls, and Zombie Mode makes you invincible but slows your movement. Energy cores are also sometimes released when an enemy is blown up. Picking the cores up repairs damage and allows for more weaponry to be added to your 'bot if you survive the zone.
Every zone has three bosses, each with a distinct fighting style.
It is up to you to determine what that is and try to use it to your advantage before you find yourself a pile of scrap metal. One of the best features of Krazy Ivan is the diversity of alien bosses. Ivan 's programmers seem to have modeled many of the enemies after real-life animals. Of course, you'll also encounter more traditional style robots too. But that's not all.