On your climb up the tournament ladder, Nazrac will notice your skill. Since Nazrac is always on the lookout for a savage warrior to help uphold his mighty empire, he will call on you to challenge the boss of one of his planets. If you win, you become the new ruler of that planet and everything on it. If you lose, your charred remains will be tossed into Nazrac's Pit of the Unworthies.

Fights against arena bosses are fights to the death. Unlike arena battles, contestants are not ejected from their MEKs in the moment before they explode. The defeated pilot is scorched to ashes by the fusion implosion. You get one MEK to prove your superiority.

In boss battles, all contestants have extra shield power added to their MEKs. Consequently, the energy cores left in the wrecks of exploded MEKs in boss battles are bright orange, and add a great deal of shield energy to whoever runs over them first. These energy cores are THE KEY to winning your challenges to Nazrac's warlords.

When you challenge an arena boss, the boss has two guards that will also fight against you. Having three MEKs shooting at you will wear you down quickly! Therefore, ELIMINATE THE GUARDS FIRST. You can tell which MEK is the boss and which are the guards by the name, the color, and the appearance of the MEK. When fighting Shocka, for example, hers is the bright blue HyperMEK. Her guards are named Voltage and Wired, and they are in normal-looking HyperMEKs.

As soon as you eliminate a guard, RUN OVER THE ORANGE ENERGY CORE sitting in the wreckage. This will boost your shields and defenses enormously. Run over that core quickly, or else one of your opponents will, and you will have a real uphill battle! It is wise not to blow up an enemy MEK if another one is hovering nearby.

Whenever possible, position yourself wisely. Don't keep driving through fire hazards or into wide spaces where your enemies can get you from all sides.

If you find yourself dying too quickly, try a MEK with more armor. If you run out of time, consider a MEK with more firepower. If you are not picking up enough energy cores and special weapon reloads, a speedier MEK will help.

Above all, be persistent. Boss battles have a unique strategy and higher tension level than what you might be used to. Keep trying, and soon you will be winning worlds.