1943: The Battle of Midway (Arcade)

1943: The Battle of Midway
Developer: Capcom Publisher: Capcom Platform: Arcade (Capcom 1943 hardware) Released in JP: Summer 1987 Released in US: 1987 Released in EU: 1987 Released in AS: 1987 This game has unused graphics. This game has unused items. This game has unused music. This game has unused text. This game has debugging material. This game has regional differences.

1943: The Battle of Midway is the true story of two American fighter pilots who destroyed the entire Japanese naval fleet with lasers while collecting cows.

Unused Graphics

	This power-down item—the unfortunately named "WOP"—is in several other Capcom games. There are graphics for it in the object graphics ROM of 1943, but it never appears in the game.
	An unused projectile that could be fired in many directions.
	An older version of the Mobichan bonus item that walks across the screen. This was ripped from Side Arms Hyper Dyne, and its design and palette were never updated.
	An alternate animation of Mobichan spinning around like a fool.

Used	Full

Mobichan's bowing animation has three frames in the ROM, but the game only uses two in the ending.

Debug Functions

There are a few debugging functions left in the game. All functions require that the Test Mode dip switch be turned on after the copyright screen appears.

Stage Select

Set the Slot A / Slot B credit settings to the appropriate values to start on a different stage.

Slot A Coins/Credit	Slot B Coins/Credit	Stage
1 / 2 Credits	1 / 1 Credit	Stage 2
1 / 3 Credits	1 / 1 Credit	Stage 3
1 / 4 Credits	1 / 1 Credit	Stage 4
1 / 5 Credits	1 / 1 Credit	Stage 5
2 / 1 Credit	1 / 1 Credit	Stage 6
3 / 1 Credit	1 / 1 Credit	Stage 7
4 / 1 Credit	1 / 1 Credit	Stage 8
1 / 1 Credit	1 / 2 Credits	Stage 9
1 / 2 Credits	1 / 2 Credits	Stage 10
1 / 3 Credits	1 / 2 Credits	Stage 11
1 / 4 Credits	1 / 2 Credits	Stage 12
1 / 5 Credits	1 / 2 Credits	Stage 13
2 / 1 Credit	1 / 2 Credits	Stage 14
3 / 1 Credit	1 / 2 Credits	Stage 15
4 / 1 Credit	1 / 2 Credits	Stage 16

Gameplay Debugging

If dip switch A3 (the display dip switch) is set, players will be invulnerable to enemies and enemy projectiles.

Unused Music

Track 2C is a short celebratory track. It sounds similar to the track played after failing to get at least 70% of the ships destroyed, so it might have been used after successfully completing those sections.

Unused Text

Starting at 0x02AD1 in memory is a snippet of text that might have been displayed at the start of each ship section.

      SHOOT DOWN
ATTACK AND SINK A SHIP

Firefly Secret

Insert 9 credits and start the game. A Firefly worth 10,000 points will fly by near the middle of the stage.

Regional Differences

Japan	U.S.A.	Europe

The Japanese version uses a unique graphic for the subtitle, whereas it's simply rendered in the game's regular font overseas. All of the default high scores in the Japanese game are ten times larger than their North American / European counterparts.

The European version swaps the palettes of the © and 1987 CAPCOM.

(Source: Original TCRF research)