Army Tank (アーミータンク) is the second boss from The Ninja Warriors.
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The Army Tank initially attacks from outside of the screen, firing from its cannon directly at the player. It creates a unblockable explosion at the player's position, so the player must get the timing of the explosions and jump away at the right time in order to avoid them.
Once the tank shows up on the screen a soldier will appear on the tank's cockpit and fire from the mounted machinegun in a downwards angle. If the player jumps on the tank the soldier will hide. The only way to defeat it is to fire shuriken at the soldier while he is firing the machinegun, otherwise he will attempt to avoid them. Once the soldier is killed the tank will leave the screen.
The tank is fought four times in the game, twice at stage 3 and twice at stage 4.