Designed to support Megalodon combat walkers by improving their combat potency and speed, the Megaarena Projector casts a powerful reactive energy shield around friendly Megalodons as long as they remain in the Megaarena's area of influence and the projector itself is not destroyed.
The energy shield generated by the Megaarena Projector is volatile to any organic matter, and as such any infantry that comes into contact with shielded Megalodons will be instantly vaporized. However, for unknown reasons, heroes are the only ones who can withstand the powerful force from the shield without sustaining critical injuries. The shield also boosts the speed of Megalodons slightly and grants immunity to EMP.
All these benefits make the Megaarena a powerful device to be deployed in the heat of a battle, as it can make Haihead's Megalodons an unstoppable force. Haihead commanders must be sure to protect the Megaarena Projector from enemies who try to destroy it to deny such advantages for the Megalodons.
The AI does not use Megaarena as a support power; instead the AI builds it directly. This means that the AI will never place a Megaarena Projector further from their own base.