A plasma cannon affixed to a robotic arm and featuring a counter on its center that appears almost at the end of the Military Train stage. It initiates its attack by bouncing wildly across the screen, attempting to crush the player while doing so. When this attack is being carried on, the counter will display an exclamation sign (!).
Once the aforementioned attack has finished, the cannon will slow down and begin targeting the player; the counter will then start a countdown from 5 to 0, at which point the cannon will fire a powerful plasma blast.
The machine cannot be harmed by normal firepower, although if one is observant, a red glowing core can be seen protruding at the base of the robotic arm, which acts as its weak point. As such, the player has to trick the cannon into shooting at its own core by using themself as bait. Three blasts will suffice to put this machine out of commission.