Boss Weaknesses 
     Some of the weaknesses in weapons are listed below. Not all bosses
     are included. 

     Boss           Weapon
     Sting          Boomerang
     Spark          Ice
     Armadillo      Spark
     Penguin        Normal (yellow revving up)
     Sigma          Normal (pink revving up)
     Sigma's dog    Homing missile
     Octopus        Storm

Early Blaster Powerup 
     I've discovered a way to, instead of waiting for Zero to die in the
     Sigma stages, get the powered up blaster early in the game. This
     requires you to: 
        1.Get the Dash boots from Chill Penguin's Stage. 
        2.Get the Helmet PowerUp from Storm Eagle's stage. 
        3.Finally, you must go to Flame Mammoth's stage. Continue to
          the right until you fall down a corridor and notice the part of the
          ceiling made out of blocks. With a well executed dash jump and
          the helmet you should be up to the top to get the powerup in no
          time. 

Extended Ending 
     After you beat the game, at the screen where you're thanked for
     playing, wait for approximately forty seconds to see an extended
     ending. 

Extra Lives 
     To get extra lives, go to Armored Amadillo's stage and when you're
     about to jump off the first cart, wait and jump off when you see a
     brown bat different from all the others. Shoot it. This bat gives an extra
     life. Lather, Rinse, Repeat. 

Helmet Capsule 
     You need the acceleration system (foot capsule) to get the helmet
     capsule. Once you have it, enter Storm Eagle's level. Play until you get
     to the steel tower rising out of the ground. You will now be able to use
     the foot capsule to get the ledge on the other side of the tower. Blow
     up the gas tanks there, and go through the resulting hole. You'll find the
     helmet capsule there. 

Passwords 
     Unscramble Mega Man's circuits with this set of passwords. 

     Password         Description
     0131-6712-1221   Sting Chameleon defeated
     5447-4177-4536   Extra life tank
     1556-6642-7448   Launch octopus defeated
     8441-2136-4421   All bad guys dead, super x-buster, 9 powers,
                      9 sub-hearts, and 4 sub-tanks
     3676-4627-5142   All sub tanks, all heart tanks,
                      and all bosses defeated 
     7437-6412-1255   Start with everything

Throw Fireballs 
     Toast the final boss with this trick. Here's the breakdown. To perform
     the trick, you must have all eight boss weapons, all nine heart tanks,
     and all four subtanks. 

     When you begin the game, don't go to the Sigma Stage. Instead, enter
     the Armored Armadillo stage. 

     Play to the end of the stage four times, keeping your Energy and
     Weapon meters at maximum. It's okay if you take a hit or use a
     weapon during the stage just be sure to recharge both meters by the
     time you get to the end of the stage. 

     Each time you reach the end of the stage, you must use the Escape
     Velocity to restart at the beginning of the stage. Remember, you must
     play though four times and always have full Weapon and Energy at the
     end of the stage. 

     After the fourth play-through, escape and restart one more time for a
     fifth try. This time, however, don't use the Escape Velocity. Instead,
     ride the third wheeled platform across the canyon and climb up the cliff
     before the entrance to Armored Armadillo's lair. On the top of the cliff,
     you will find a power-up capsule containing Dr. Light in a Ryu
     costume. He will give you the "Hadoken" Fireball technique! 

     You can throw Fireballs using the same motion used in SF II: Sweep
     the controller in a quarter-circle motion from Down to Forward and hit
     the Attack button. You can use the Fireball to kill all the final Sigma
     bosses with only one hit, but you must have full Weapon power to use
     the move. Remember, though, you cannot save the Fireball item using
     a password if you turn off the power, you will lose the weapon.