Mega Man 6/Wily Fortress 2

Yet another straightforward stage. Rush Jet is very useful here, and there are some frozen blocks you can melt with the Flame Blast, to find some secret areas and items.

At the end, you'll encounter a tank on treads. Hitting the wheels does no damage, but will push the tank back. Nail the cannon with Yamato Spear, or if you're feeling bold, Wind Storm (which is harder to hit with). For best results, keep your distance and opt for the Yamato Spear strategy.