Mega Man: The Power Battle

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Title Screen

Mega Man: The Power Battle

Also known as: Rockman: The Power Battle (JP)
Developer: Capcom
Publisher: Capcom
Platform: Arcade (CPS-1, CPS-2 (Japan, US "SAMPLE" version))
Released in JP: October 1995
Released in US: 1995


DevTextIcon.png This game has hidden development-related text.
EnemyIcon.png This game has unused enemies.
GraphicsIcon.png This game has unused graphics.
ItemsIcon.png This game has unused items.
Sgf2-unusedicon1.png This game has unused abilities.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.


Wherein Dr. Wily just gives up on the whole "themed levels" thing and sends Robot Masters after Mega Man.

Contents

Subpages

MegARCWilyStand.gif
Unused Animations
Graphics drawn for the game as well as those carried over from other titles were left in the final release.

Enemies

This game was supposed to have enemies (like the ones in Mega Man 2: The Power Fighters). They aren't used, but their graphics are still in the ROM. Their palettes are still in the ROM in slots 16-18. Different palettes are loaded in each game mode.

General

MegaARCProp.gif MegaARCPropMad.png

Properide
Palette ID: 18
Possible Boss: Unknown

Unused in The Power Fighters

Mega Man 1-2

MegaARCDeluBlink.gif MegaARCDeluMad.gif MegaARCDeluMisc.png

MegaARCDeluFly.gif MegaARCDeluMini.gif

DeluPipi
Palette ID: 17
Possible Boss: Unknown

Used by Air Man in The Power Fighters.

MegaARCMetWalk.gif MegaARCMetAlt.gif

Mettaur
Palette ID: 16
Possible Boss: Guts Man

Used by Guts Man in The Power Fighters.

Mega Man 3-6

MegaARCKogoro.gif MegaARCKogoroShock.gif

Kaminari Kogoro
Palette ID: 16
Possible Boss: Gyro Man

Used by Elec Man in The Power Fighters.

MegaARCKerone.gif

Kerone
Palette ID: 17
Possible Boss: Plant Man

Used by Stone Man & Shadow Man in The Power Fighters.

Mega Man 7

MegaARCPetaforce.gif MegaARCPetaTurn.gif

Petaforce
Palette ID: 16
Possible Boss: Cloud Man

Used by Cut Man & Gemini Man in The Power Fighters.

MegaARCRoader.gif MegaARCRoaderMad.gif

Turbo Roader
Palette ID: 17
Possible Boss: Turbo Man

Unused in The Power Fighters

Unused Abilities

Super Shots

MegaARCSuperBuster.png

The supercharged buster shots are present in the ROM, but they only show up during the high score screens. They appear properly in The Power Fighters. They can also be seen by changing RAM address FF8435 to 04.

CPS-1
CPS-2

Their respective sound effects are still in the game.

Helpers

MegaARCLostIcons.png

Each of the playable characters has an unused "helper" weapon. These were later implemented in The Power Fighter, though these icons were not. There are also three temp icons (Rush, Beat, Gospel) that don't seem to have palettes anymore: These are the best matches available.

Rush

MegaARCRushStationary.gif MegaARCRushTransform.gif

Rush seems to have functioned identically to his appearance in the second arcade game, though no walking sprites are present in the ROM. His Rush Jet sprite is also slightly different.

Beat

MegaARCBeatCalm.gif MegaARCBeatAngry.gif MegaARCBeatPanic.gif

Beat's sprite was completely redrawn for The Power Fighter. Here, it's directly based off of his appearance in Mega Man 7. The panicked animation can only be found in this game.

Treble

MegaARCTrebleAppear.gif MegaARCTrebleWalk.gif MegaARCTrebleRun.gif

Treble is by far the most complicated of the three helper characters. He has a large amount of different animations and frames.

MegaARCTrebleShoot.gif MegaARCTrebleJump.gif MegaARCTrebleLeap.gif

Fortunately, almost all of Treble's animations were used in The Power Fighters. However, this second jumping animation was not.

MegaARCTrebleCharge.gif MegaARCTrebleChargeStop.gif

The flames around Treble have three animations here, but only two frames in the second game.

MegaARCTrebleMisc.png

The last set of frames. The second one doesn't appear in The Power Fighters, and suggests that it was possible for Treble to take damage.

MegaARCTrebleBeam.gif

An alternate projectile from Treble. The shots in The Power Fighters are more detailed.

Unused Enemy Attacks

PAR codes can be used to force the AI into using attacks that are part of certain character arsenals but aren't enabled in their routines.

Cut Man

Afterimages Rolling Cutters
Cutman jumping towards Mega Man leaving a trail of afterimages Cutman in mid-air firing a set of 8 Rolling Cutters

Use PAR code FFDA05 to set the first RAM address to 10 and PAR code FFDA06 to set the second to 00 to see this attack. This causes Cutman to jump in the air leaving a trail of afterimages and eventually attack Mega Man by firing 8(!) Rolling Cutters at once.

Wily Saucer

The Wily Saucer has 5 attacks, none of which are used! The final version has no real attacks; just moving up and down.

Use PAR code FFD905 to set the RAM address to the given action ID and code FFD906 to 00 to see these attacks.

Wily in his craft firing an energy-based bungee cord

Action ID: 0C
An electric bungee cord is spawned. After rotating counterclockwise two times the cord is fired at the player. It's likely that the second saucer is supposed to be connected to the other side of the cord, but the shuttle just moves up and down instead.

Wily in his craft firing a lighting bolt

Action ID: 08
Wily teleports to one side of the screen then fires an electrical bolt dragged under his ship as he sweeps the screen.

Energy ball Bouncy energy ball
Wiley firing a large energy blast at Mega Man after the ball has left the screen

Action ID: 06
Dr. Wily fires a large energy ball. This ball bounces across the screen, disappearing on the second bounce.

Mega Man jumping to avoid 3 small yellow energy balls

Action ID: 04
Three small energy balls are fired at the player.

Unused Items

There are no items in the final version, though it's apparent that some were planned to be implemented.

Energy Capsules

MegaARCSmallHealth.gif MegaARCLargeHealth.gif

Standard energy pick-ups that appear in most Mega Man games. Not this one, though.

Weapon Capsules

MegaARCSmallWeapon.gif MegaARCLargeWeapon.gif

And here are weapon pick-ups. In the game's current format, these are pretty pointless, as weapons are refilled after stages.

Miscellaneous

MegaARCPickups.png

Other power-ups: An Energy Tank (no appropriate palette exists in the ROM), a Weapon Tank, and...a large bolt? The first two have obvious purposes, but bolts are usually used as currency in Mega Man games. Perhaps this game once had a shop?

MegaARCGreenOrb.png

A green orb, similar to the pink health bonuses given at the end of a stage. Either this would be a weapon pickup (made redundant, since weapons are filled up at the end of a stage anyway), or a larger health bonus.

Other Unused Graphics

MegaARCBonuses.png

Text graphics for unused Enemy and Capsule bonuses. Obviously related to the unused enemies and item pickups found in the game.

MegaARCWeaponText.png

Should appear above the weapon meter, but doesn't.

MegaARCFullBG.png

The top of this machine in the Wily Fortress is technically used, but it's always out of view.

Unused Music

CPS-1
CPS-2

Only 18 seconds of this 38 second song are heard in normal play, and it never loops. If the more complicated Dr. Wily battle was implemented, this song might have been heard in its entirety.

Unused Tilesets

Six tilesets are left unused in the game. All six are in a simpler, flat style, as opposed to the slightly overhead perspective that the final tilesets use. They also include ladders, which don't appear anywhere in the final game.

The palettes for these sets are used, however.

City #1

MegaARCUnusedBG1.png

Palette ID: 50, City stages.

City #2

MegaARCUnusedBG2.png

Palette ID: 45, City stages.

Cloud Stage

MegaARCUnusedBG3.png

Palette ID: 47, Cloud stages.

Arctic

MegaARCUnusedBG4.png

Palette ID: 52, Arctic stages.

Woods

MegaARCUnusedBG5.png

Palette ID: 51, Forest stages.

Fortress

MegaARCUnusedBG6.png

Palette ID: 4F, Wily Fortress.

Unused Palettes

MegaARCTreesBG1.png MegaARCTreesBG3.png

Palettes exist for this background for all story paths. However, it's only seen in the Mega Man 3-6 path.

Miscellaneous Unused Content

MegaARCSelect1.png

Set FF8103 and FF8107 to 0C after selecting a stage. The cursor will appear where the Wily fortress is, something that never happens in the final game.

MegaARCSelect2.png

Though the level name is taken from the Junk-type level of the current path, a mini Yellow Devil does show up in the intro.

Debug Content

Tile Viewers

Object / BG Viewers can be accessed from the Test Menu. These were likely selectable normally in older builds of the game and were disabled before release. They can be enabled by setting their values in RAM using the PAR code FF0CD0, plus the values for each in the gallery below, to the given value to access each viewer.

Controls
P1 Up/Down: Scroll through tiles.
P1 Left/Right: Change palette.
P1 Button 1: Increase scroll speed.
P1 Button 2: Increase scroll speed more (when used with Button 1)
P1 Button 3: Toggles narrow/wide tile viewing
P2 Left/Right: Change Stage number.
P2 Button 1: Toggle H-Flip.
P2 Button 2: Toggle V-Flip.
P2 Button 3: Change background color.

Subtest Menu

MegaARCSubtest.png

A hidden test menu is still in the game. While in the normal test menu, change RAM address FF8001 to 08.

All of the ??? options (and Exit) lead to the default test menu.

Obj Test

MegaARCObjTest.png

Presumably an object test, but unfortunately, none of the variables can be changed. It appears to have been completely dummied out.

SCR Block Tests

Viewers for the game's SCR2 / SCR3 chunks.

Controls
Up/Down: Change Block Number.
Left/Right: Change Stage Number.
Button 1 + Left/Right: Change X position (fast)
Button 1 + Up/Down: Change Y position (fast)
Button 2 + Left/Right: Change X position (slow)
Button 2 + Up/Down: Change Y position (slow)
Button 3 + Left/Right: Change Round Number.
Button 1 + Button 3 + Left/Right: Modify X position by 4.
Button 1 + Button 3 + Up/Down: Modify Y position by 4.
Button 2 + Button 3 + Left/Right: Modify X position by 1.
Button 2 + Button 3 + Up/Down: Modify Y position by 1.

Error Handler

A handler for various errors is built into the game. RAM can be scrolled through with Up / Down. Pressing Button 1 will bring up the screen before the crash, and Button 2 will set the currently viewed RAM address to 00FF8300.

Other errors text (located at 0x007D0 in the main CPU):

BUS ERROR
ZERO DIVIDE
CHK INSTRUCTION
TRAPV INSTRUCTION
TRACE
1010 EMULATOR

Other Debug Text

Text for two earlier test menus can be found in the ROM, starting at 0067A3:

Oldest Older
T E S T   M E N U
1 INPUT
2 OUTPUT
3 SOUND & VOICE
4 COLOR
5 DOT CROSS HATCH
6 GAME DATA
7 CONFIGURATION
8 OBJECT
9 SCROLL 1
10 SCROLL 2
11 SCROLL 3
12 MEMORY CHECK
13 EXIT
T E S T   M E N U 
1 INPUT
2 OUTPUT
3 SOUND & VOICE
4 COLOR
5 DOT CROSS HATCH
6 DIP SWITCH
7 OBJECT
8 SCROLL 1
9 SCROLL 2
10 SCROLL 3
11 MEMORY CHECK
12 EXIT
 

Revision Differences

Two programming revisions of The Power Battle exist: One for the CPS-1 system, and one for CPS-2. They were released simultaneously in Japan, however only the CPS-1 version was released in USA, but a "SAMPLE" version of the CPS-2 revision was also released. However, since the QSound title card graphics can also be found in CPS-1, it's likely that the game was developed for the CPS-2 first, then ported back.

Audio

CPS-1
CPS-2

Though the gameplay is identical between versions, the audio quality is much better in the CPS-2 version due to the inclusion of QSound.

There are also a few voice clips that are only found in the CPS-2 version, such as these "Got Weapon" quotes. There are two for each character.

Certain bosses, like Guts Man, are not voiced in the CPS-1 game, and some just have less dialogue (like Cut Man).

Version Differences

Title Screen

Japan International
MegaARCTitleJP.png MegaARCTitle.png

The Japanese version has a bit of animation (the gears in behind the logo) that doesn't appear in other versions.

Score Ranking

Japan International
MegaARCHiScoreJP.png MegaARCHiScoreINT.png

The Japanese game has a unique background for the Score Ranking screen. Other versions recycle the Wily Castle map background.

Get Weapon

Japan International
MegaARCGetJP.png MegaARCGetINT.png

The Japanese weapon acquired screen uses a different, unique background. The international versions use an animated gear background, based on the gears in the Japanese version's title screen.

Voices

The biggest difference between versions is the inclusion of many more character voices in the Japanese game. All clips involving the player / bosses actually speaking were removed from non-Japanese variants.

Sample voices.