Instructions
Duck when you see the Armortron Crusader robot start to fire his blue beam from the large cannon on his left arm. Do not attempt to jump over it, or you will come down on top of it and lose health. Stay down until the beam passes by.
Avoid the yellow beam he shoots from the red spot in his chest. The beam spans from the right all the way to the left of the dam. The way to avoid it is to run all the way to the left. When the beam is close, perform a double jump. It will pass right under you.
Avoid his arm swat by not getting too close to him. If you do, this attack is almost impossible to avoid.
Perform a double jump to avoid debris from his ground slam. Execute the jump just before his hand hits the ground.
Attack when he reaches the top of the dam. Stay to the left and wait for him to slam his hand into the road and jump over the debris as described in step four. His hand will now be stuck. Attack his chest cannon until he pulls his arm free. Jump away and run to the left once he does. Repeat this process until his health is about haflway down. He will fall off the dam and you will enter the second phase of the battle.
Attack the generators in this new area while you are avoiding Armortron Crusader's attacks. They must be destroyed in order for you to damage him any further. Climb on top of the generators and attack them using Fourarms' or XLR8's weapons. Once it starts to smoke, jump off and repeat on the next one. Once both are destroyed, a blue flash of light will knock Armortron Crusader to the ground and the armor on his face will part, revealing a blue globe.
Attack the blue globe until the generators repair themselves. Once they do, repeat the process in the previous step to destroy them once again. Attack the blue globe again and Armortron Crusader will go down for good.