Mega Mastodon is an awesome gun! First off, this thing is huge. It measures 31 inches long, 1 foot tall and 8 inches wide. I don’t know if it was necessary to make it so large. The area in front of the drum probably did not have to be so big. The battery compartment is quite large which brings me to my next point.
Mega Mastodon requires six D batteries to operate. That also adds to the expense of the gun. Being so big, the strap is somewhat necessary. I thought the strap was a just to make it seem bigger so more people would buy it. However, the strap is a good addition because it is heavy.
For the base I built out of boxes, I use Mega Mastodon as a turret to defend the base. I just run behind the wall and fire Mega Mastodon which is sitting on the central box.
Performance-wise, Mega Mastodon is great. It shoots quite far and is also the biggest and heaviest Nerf gun. The Vulcan previously held those records. It is not as long as the Centurion, though. I like it very well, despite its size, and I would recommend it for anybody who wants a big machine gun.