When they reach the wall, they find a giant rock face that's hollow inside. It's filled with elemental droids, who eat the rock face and then attack other creatures. The rock face is covered with probes on its tails, which means that the elementals can't leave parts behind. They're not really dangerous, though, because they're only attacking other droids. Ashidaka, one of the giant elementals, comes out of the wall. He's got an electric charge on his body, and he's ready to die. He tells the guys to shoot him from the left and wait for his signal. The purple light on his arm turns out to be a lightning rod, and the guys have to punch it back into him.