Tank CSII

Tank CSII (タンクＣＳII型) is the boss of the second Wily Castle stage of Mega Man 6. It moves on three wheels while shooting bullets and exploding bubbles at Mega Man. Wind Storm is the best weapon to use to defeat this boss; caution should be taken so as to avoid wasting Wind Storm on the bubbles.

Other media
Tank CSII appeared in the Rockman 6 manga and has a cameo appearance in Mega Man Megamix.