Rolling Thunder/Stage 2

Once Albatross has reappeared, start walking to the right and shoot the Yellow Type 2 Masker, along with the first instance of a White Type 1 Masker. Two more Gray ones are present on the platform overhead, who will throw grenades down when you pass them. Jump up to their level in order to shoot them and collect the extra Machine-Gun ammunition from the door on the platform, then make a short jump off its right edge in order to land on another overhead platform. There is a Pink Type 1 Masker and two more Gray ones on this platform, along with a pistol ammunition room on the right-hand side. Once you have obtained the extra ammunition, drop down off its right edge and continue on. You will now have to make your way across an enormous stack of crates with several Pink and Gray Type 1 Maskers on it. Once you have killed them all and made it to the other side, jump up to the next overhead platform, then make a long jump off its right edge in order to land on another overhead platform. There is an Orange Type 1 Masker and a Blue Type 2 one on this platform, and you will have two options once you have disposed of them: you can either make your way down the first staircase, kill the Yellow Type 2 Masker waiting at the bottom and continue to the left, or you can just jump down to the level below, continue to the right and make your way down the second staircase. There are three Type 1 Maskers and another Yellow Type 2 Masker waiting at the bottom of this one, and once you have killed them, you can once again continue to the left. Another Pink Type 1 Masker, along with an Orange one and the first instance of a Brown Type 2 one are waiting at the top of the third staircase, and you will have to kill them all before you can use it. Two more Pink Type 1 Maskers are also waiting at the bottom. However, if you want to save time, you can just jump down to the level below again, which will land you at the bottom of the fourth staircase. Continue to the left until you see an Orange Type 1 Masker waiting at the top of the fifth and final staircase, whom you will have to kill before you can use it. There is also a Pink one waiting at the bottom. Just before the end of the stage, four Blue Ninjas will materialize from the wall. Once you have killed them all and entered the doorway, you will proceed to the third stage.