版本区分（十六进制）：
U-PRG0：59750-A：FF
U-PRG1：59750-A：00

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Get the item you want from FlipTop/Eddie
FlipTop/Eddie appears in certain empty rooms and will eject a random item to you when you are close by. Walk up to him to get him to stop, then quickly move away. If you don't get the item you want, exit the room and return. As long as you don't pick up the item, Eddie/FlipTop will reappear with a new item.

Kill Dr. Wily
After beating Wily Machine 4, you can cast Rain Flush at the right time to kill Dr. Wily. The ending sequence will not play.

Pharaoh Shot Energy Trick
The Pharaoh Shot only uses energy when you either press or release the B button, so you can have unlimited Pharaoh Shots doing the following trick.
At the weapon menu highlight the Pharaoh Shot, press and hold the B button, then resume playing the game. You will start charging your shot as if you had already fired it. Run the charged shot into an enemy so that you don't release the B button. This will hurt the enemy but not drain any energy from you weapon meter.

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选关密码：
A2 A5 A6 B1 D1 E3 Toad
A1 A3 A5 B2 D1 E3 Bright
A1 A5 B4 C1 D1 D3 Pharaoh
A1 B4 B6 C4 D1 B3 Ring
A1 B4 B5 C6 D1 D3 Dust
A1 B4 B5 D2 D3 F2 Skull
A1 B4 B5 E2 E6 F3 Dive
A1 A4 B5 E2 F1 F3 Drill

Create your own custom passwords
Four of the dots are assigned to two bosses each, one dot is assigned to the Balloon and Wire lifts, and the sixth dot is a checksum.
Each of the first five dots goes into one of four spaces, and the "checksum" dot goes into one of 11 spaces, which must map to the number of bosses defeated plus the number of optional lifts obtained.
E3   Balloon Lift not obtained, Wire Lift not obtained
D4   Balloon Lift not obtained, Wire Lift obtained
D3   Balloon Lift obtained, Wire Lift not obtained
F3   Balloon Lift obtained, Wire Lift obtained
A1   Bright Man defeated, Toad Man defeated
C2   Bright Man defeated, Toad Man undefeated
B1   Bright Man undefeated, Toad Man defeated
A2   Bright Man undefeated, Toad Man undefeated
F5   Checksum 0
A6   Checksum 1
F1   Checksum 10
B2   Checksum 2
B3   Checksum 3
C1   Checksum 4
C4   Checksum 5
C6   Checksum 6
D2   Checksum 7
E4   Checksum 8
E6   Checksum 9
E2   Dive Man defeated, Skull Man defeated
E1   Dive Man defeated, Skull Man undefeated
F2   Dive Man undefeated, Skull Man defeated
D1   Dive Man undefeated, Skull Man undefeated
A4   Drill Man defeated, Pharaoh Man defeated
C3   Drill Man defeated, Pharaoh Man undefeated
B4   Drill Man undefeated, Pharaoh Man defeated
A3   Drill Man undefeated, Pharaoh Man undefeated
B5   Dust Man defeated, Ring Man defeated
C5   Dust Man defeated, Ring Man undefeated
B6   Dust Man undefeated, Ring Man defeated
A5   Dust Man undefeated, Ring Man undefeated

Passwords
A5 B1 C1 C3 D1 F3   All 4 items obtained
A1 A4 B5 E2 E3 E4   All bosses defeated with no adaptors
A1 A4 B5 E2 F1 F3   Bright Man defeated
A3 A5 B3 C2 D1 F3   Bright Man defeated with both Adaptors
A2 B4 B5 D2 E2 F3   Dive Man defeated
A2 A3 A5 B3 E1 F3   Dive Man defeated with both Adaptors
A2 A4 B5 E2 E4 F3   Drill Man defeated
A2 A5 B3 C3 D1 F3   Drill Man defeated with both Adaptors
A2 B4 B5 C1 D1 D3   Dust Man defeated
A2 A3 B3 C5 D1 F3   Dust Man defeated with both Adaptors
A1 A4 B5 E2 F1 F3   Final stage of Dr.Cossack's Citadel
A2 A5 B2 B4 D1 D3   Pharaoh Man defeated
A2 A5 B3 B4 D1 F3   Pharoah Man defeated with both Adaptors
A2 B3 B4 B6 D1 D3   Ring Man defeated
A2 A3 B3 B6 D1 F3   Ring Man defeated with both Adaptors
A2 B4 B5 C4 D3 F2   Skull Man defeated
A2 A3 A5 B3 F2 F3   Skull Man defeated with both Adaptors
A2 A3 A5 A6 D1 D3   Start game with Balloon Adaptor
A2 A3 A5 A6 D1 D4   Start game with Wire Adaptor
A1 A4 B5 E2 F1 F3   Start with all weapons and items
A3 A5 B1 B3 D1 F3   Toad Man defeated with both Adaptors
A2 A3 A5 B2 D1 F3   Wire and Balloon Adaptors Obtained

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Game Genie:
AAUKZIZA Start with 1 life
IAUKZIZA Start with 6 lives
AAUKZIZE Start with 9 lives
SZUGUAVG Infinite lives
GXNPZTVG Infinite "energy" pods on pick-up
AEOAIEPA Instant megablast!
YXEAIOZO Longer sliding
ZOEAIOZP Shorter sliding
GEOAGPZA Faster sliding
AAKEYPIE Mega Man mega-jumping!
GXENESOO Infinite weapon power
GXVEIPSA Don't take damage from bad guys
ZANKPTPA + ZEVALLPA Faster running

【Not personally tested】