Mega Man 4 Walkthrough

Penius

Pharaoh Man's Stage: Egyptian Excavation
Uh-oh! You're in a large quicksand and Sasoreenus are popping out! Do not hit the one on the left as the sand will sink you. Just before entering the pyramid, using Rush Coil or timing one's jump properly will lead them to a bonus area containing the balloon item. Fight through more enemies within the pyramid, while dodging spikes and bottomless pits. Now enter deeply and shine your light on Pharaoh Man! Unlike most weaknesses, the Flash Stopper only immobilizes him while enabling you to fire uncharged buster shots, so make them count, or there is a chance that you will run out before Pharaoh Man is dead. If you do, use Rain Flush as a substitute.

Ring Man's Stage: Space Simulator
Slide across the 'rainbow',Jump and shoot the cannon(it can only shoot at 3 different angles) and climb the ladder. get the next 2 canons and jump on the middle of the next 2 rainbows, climbing the ladder again. Next, 2 planets that both look like saturn and move like the Telys from mega man 2 come floating towards you (the good thing is that their HP is only 1, so no need to worry). Shoot them and continue on. The next screen is a challenge, 2 cannons high above you, and sevral short rainbows in between(did i mention that these disappear? i don't think so). slide across the rainbows, and get the cannon out of your way. climb another ladder and continue on. now cross this next rainbow and prepare to get 'gamers thumb'. its... a giant hippo?! anyways, shoot the blocks its standing on to lower it, so you can shoot it more easily, but the blocks regenerate, and the hippo will spit homing misles at you. get rid of it and move on. Ignore the new type of Spines below the rainbows, shoot the planets, and-oh no! there's a pair of rainbows above some spikes! anyways, jump as far away from the beginning of the rainbow as you can, and slide the rest of the way over. jump down the pit and another sub-boss is waiting for you. its a bunch of rings with closed eyes. WTF? so, if have Bright man's weapon, use it as soon as the rings shoot outwards, and give him heck! When he dies, the thing he was standing on blows up. drop down, but don't charge your buster, you wont need to. Why? because it's another @$^%#@# giant hippo!!* so just use the same strategy as before, or 2 other options: now charge your mega buster or use rush coil to get edie's item, then move out. It only takes a charge shot to get rid of the next 4 enemies, so don't panic. Here, the rainbows look like your energy bar and instead of disappearing behind you, these ones disappear from in front of you! My suggustion is this: jump to the middle, walk across a little bit, then jump to the end. climb down the ladder and continue on. Jump across the next rainbow, you know what to do. And it's another bunch of rings; just run thruogh, slide under the narrow spot, and you're at ring man's door. Go on in, and if you have it, whip out your pharaoh shot; this guy is the most fast of the 8 robot masters, so you better charge it up full. ring man is prety easy, to make up for his level; He'll just run around, throwing his ring boomerangs at you. Sliding to avoid his landing on you at the last minute will result in Ring Man landing straight on your Pharaoh Shot if you have it charged. Follow up by throwing it at him before he can jump to do rapid damage. You adapt the ring boomerang after defeating him.
 * 1) 1 use rain flush over and over again, or...
 * 2) 2 use bright man's weapon.**

Dust Man's Stage: Robot Scrapyard
From the start, head right, defeating the Shield Attacker. Shoot the met, and-hold on! don't jump over the pit, but get as close as you can to the edge before jumping, because an enemy is in the pit! Shoot it, jump over, shoot the next Met, destroy the next enemy, get rid of the next shield attacker, keep going right and drop down to next screen,get the energy capsule if you need it, and keep going. there's a Jumbig waiting for you, so charge your megabuster. after that, there's some things that

Skull Man's Stage: Robosaur Boneyard
This stage abounds with Shield Attackers and Skeleton Joes. There is a large room that the ladder you come up from completely passes, but it has an E-Tank and large health after a gauntlet of Shield Attackers. To avoid them, simply jump over them as the come towards you and shoot them as they are flying away. However, this only works in open areas, so mind your health when trying to get the first E-Tank! If one has acquired the Rain Flush or Flash Stopper, they can be used too - just be try to hit as many enemies as possible with the Rain Flush, as it does use quite a bit of energy. The Flash Stopper negates the shields of the Shield Attackers, so just plow through them with buster shots after activating it. After the E-Tank cavern, there are several pink skull-shaped cannons.They can only be destroyed from behind, and naturally have to shoot in that direction as well. A second E-Tank is at the end of an alternate passage with a very difficult jump (Rush Coil does not work due to the low ceiling). After this area, there is a large, platform-lined bottomless pit. Seems simple enough, but consider the fact that an army of Skeleton Joes are just waiting to make you mess up. To destroy them, use a charged shot or the Pharaoh Shot - nothing else will destroy them - they will reassemble after 3 seconds with anything except the 2 aforementioned weapons and the Rain Flush and Dive Missile, which do absolutely nothing.

Cossack Stage 1: Snowy Outer Walls
Watch out for ice that abounds throughout this stage, as it will trip you up if you are not careful. The spring enemies outside the walls are fairly easy to destroy. Once you get inside, a pair of enemies await you. Use the Rain Flush to dispatch them quickly. Once you are on top of the outer walls, there are Skeleton Joe waiting. Use the Pharaoh Shot or a fully charged Mega Buster to destroy them. Remember those pesky enemies in Dust Man's stage? Well, they're back! Use the Flash Stopper to prevent them from rising to knock you down, or shoot them and cross. The Flash Stopper is recommended, as hiding beneath and close to a Skeleton Joe will cause their bones to miss you and the ice prevents players from quickly crossing the pits before another enemy rises to knock them out.? If done right, one need only use the Flash Stopper twice. A large energy capsule after the second-to-last Skeleton Joe will compensate you for your troubles. Afterwards, you will come to an area with a few platforms. Simple, right? Wrong - the platforms can only be reached by either Rush Coil or transport items (balloon and wire). At the top, there are several vice-like enemies guarding a series of ladders. Only one leads to the boss room, and that is the one furthest from the player. Time your jump to the other ladders carefully to avoid the clamp enemies and make use of the energy capsules. Once you are past the ladders, you face Mothraya. It's weakness is the Ring Boomerang. Alternately, Dust Crusher, Pharaoh Shot,  and Drill Bomb can be used if the player has run out of Ring Boomerang.

Wily Stage 3: Inner Walls and Teleporters/Cyberspace
For the first bit of this level, you'll be dropping down into different areas to face various smaller enemies and collecting weapon energy in preparation for your second set of fights with the robot masters. As usual, you enter different teleporters to fight each different robot. Once they are all destroyed again, a ninth teleporter appears. Time to face Dr. Wily (in a skull shaped hovership). For the first part of the fight, his machine will just hover up and down and shoot three fireballs followed by a short pause. Stand close to the machine and you will not get hit by the fireballs. Charge your Mega Buster when his fireballs are shooting. Once he pauses, jump up and shoot him with your charged shot. Repeat until his energy is drained, but it's not over yet. The skull will be destroyed and you'll be able to see Wily now. He'll also stop hovering up and down and begin moving left and right. Furthermore, he'll shoot fireballs nonstop now. His weak point is the blue jewel just below where Wily's face is. The weapon to use is Drill Bomb, but there's a certain way to do this. If the bomb hits Wily's machine, it'll just bounce off. Instead, detonate the Drill Bomb before it hits. The explosion causes incredible damage and will take Wily down without much effort. But as usual, he'll get away meaning that there's one more level to go.

Trivia
In cossack stage 1, there's hidden E-tank in a snow behind Mega man