Mega Man (NES)/RAM map

The following article is a RAM map for Mega Man (NES).

Note: Memory locations discovered using the 'FCEU' Emulator for Windows.

Given values: $Hexadecimal value(Decimal value), ex. $63(99)

Any values less than $0A(10) will only show the Hex value.

RAM	Function	Details
0020	Megaman's X position	High-byte; when $0022 gets larger than $FF(255), this value increases by 1
0022	Megaman's X position	Low-byte
0025	Megaman's Y position	Low-byte
002C	Type of object that Megaman is touching from the top	$00-Air, $01-Solid, $02-Ladder, $03-Spike, $04-Ice, $05-Water
0031	Stage number	$00-Cutman, $01-Iceman, $02-Bombman, $03-Fireman, $04-Elecman, $05-Gutsman, $06-Wily 1, $07-Wily 2, $08-Wily 3, $09-Wily 4, $0A(10)-Title Screen, $0B(11)-Ending BG
005D	Which ememys have been defeated/Weapons unlocked bit 1 Bombman/Hyper Bomb bit 2 Elecman/Thunder Beam bit 3 Gutsman/Super Arm bit 4 Iceman/Ice Slasher bit 5 Cutman/Rolling Cutter bit 6 Fireman/Fire Storm bit 7 Magnet Beam	Setting a bit will defeat/unlock the corresponding Villan/Weapon. Set this byte to $FE(254) to go directly to Dr. Wily.
005F	Weapon Select (Works only when pausing, otherwise values will be different.) $00 Mega Buster(normal weapon) $01 Hyper Bomb $02 Thunder Beam $03 Super Arm $04 Ice Slasher $05 Rolling Cutter $06 Fire Storm $07 Magnet Beam	This only controls the weapon function, it will not change his color. You can select any weapon even if it's still locked.
006A	Mega Man Life Bar Value	$1C(28)-Full, $00-Empty
006B	Cutman Weapon Energy	$1C(28)-Full, $00-Empty
006C	Iceman Weapon Energy	$1C(28)-Full, $00-Empty
006D	Bombman Weapon Energy	$1C(28)-Full, $00-Empty
006E	Fireman Weapon Energy	$1C(28)-Full, $00-Empty
006F	Elecman Weapon Energy	$1C(28)-Full, $00-Empty
0070	Gutsman Weapon Energy	$1C(28)-Full, $00-Empty
0071	Magnet Beam Weapon Energy	$1C(28)-Full, $00-Empty
0072-0078	Score	Each byte represents one digit in BCD. Starts with ones digit (0072)
0094	Type of object that Megaman is touching from the sides	$00-Air, $01-Solid, $02-Ladder, $03-Spike, $04-Ice, $05-Water
00A6	Lives	Maximum is $80(128). Bit 7 set gives Game Over. Game will not raise it past $63(99).
00AE	Bonus	Number of bonus energy balls picked up during level. Is multiplied by 1000 at level completion screen.
0100-01FF	Stack	RAM used by CPU for stack.
0200-02FF	Sprite Data	256 byte block that is transferred via DMA to PPU memory during each NMI Routine.
03D0-03DF	Palette Data	The whole BG palette. $10(16) bytes long.
06C1	Boss Energy	$1C(28)-Full, $00-Empty