Bomberman II

Bomberman II
Also known as: Bomber Man II (JP), Dynablaster (EU) Developer: Hudson Soft Publisher: Hudson Soft Platform: NES Released in JP: June 28, 1991 Released in US: February 1993 Released in EU: 1991 This game has hidden developer credits. This game has hidden development-related text. This game has unused graphics. This game has debugging material. This game has a hidden sound test. This game has regional differences. This game has a Data Crystal page

The popular multiplayer mode makes it to the NES. And the people rejoiced.

Unused Graphic

Kondoria, a regular enemy from the first NES Bomberman, as well as a battle mode obstacle from the first TurboGrafx-16 game is nowhere to be found in this game.

(Source: Ragey)

Developer Credit

To check whether the game was hard or soft reset, the game uses the string

KOSAKA!!

.

(Source: Cah4e3)

Build Date

A string with the game's name appears at the end of each version's ROM. The North American and European versions also have build dates.

Japan	North America	Europe
BOMBER MAN 2	BOMBERMAN2 92817	DYNABLASTER 826

Secret Passwords

These passwords toggle various features in the game.

JP	INT	Feature
PONEJACK	KJH5C13D	Bonus Stage Entering this password leads to the first area's bonus stage. After that, the player is thrown back to the title screen.
PBOMBACE	K2JG2135	Shorter Bomb Timer Bombs sit shorter before detonating (1 second).
PBOMBOLD	K2JG2JF4	Longer Bomb Timer Bombs sit longer before detonating (3 second).
PBOMBMAN	K2JG2G1H	Reset Bomb Timer Resets the bomb timer to its default 2 second delay.
PACHINKO	K138BHDJ	Remote Bombs Remote bombs are always enabled in 1P mode.
PANICMAN	K1HB3G1H	Semi-Remote bombs Enabled remote bombs, but bombs will detonate by themselves if left around for too long.
PCDEFGAB	K3456712	Sound Test It's a sound test. Duh.

Regional Differences

Title Screen

Japan	North America	Europe

The trademark info was updated in the North American game, and a trademark symbol was added. The European version is titled Dynablaster, the name used for all European Bomberman releases up until Super Bomberman, as the original title was associated with terrorist bombings (at the time).

Cutscenes

Japan	International

The cross on the church was removed.

Passwords

Japan	International

As evidenced above, the password format is different between the Japanese and international revisions. The international releases omits all vowels, an odd bit of censorship(?) that can be seen in other games. Though the symbols changed, the actual password values are identical. A=1, H=8, I=B, etc.

Sound Test

Japan	North America	Europe

Spaces were removed between Bomber and Man, and Man and 2. The European game remembers to update the game title.

Sound Oddities

Corrupted DPCM Samples

The explosion sound effect suffers from bit reversal, a sample encoding issue which plagued many NES games including Bomberman (NES), Double Dribble, Mr. Gimmick, and Klax.
An explanation for this is given on Double Dribble's page.
Original Explosion Sample

Fixed Explosion Sample

The percussion and orchestra hit samples also suffer from this issue.
Original Percussion Samples

Fixed Percussion Samples