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Legend of the River King 2

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Title Screen

Legend of the River King 2

Also known as: Kawa no Nushi Tsuri 4 (JP)
Developer: TOSE
Publishers: Natsume (US), Ubi Soft (EU), Victor Interactive Software (JP)
Platforms: Game Boy, Game Boy Color
Released in JP: July 16, 1999
Released in US: April 17, 2001
Released in EU: March 30, 2001


DebugIcon.png This game has debugging material.
SoundtestIcon.png This game has a hidden sound test.
LevelSelectIcon.png This game has a hidden level select.
RegionIcon.png This game has regional differences.


Being King of the River sounds fun but watch out for bears! A fishing game that's also a turn based RPG where you fight random spiders with your fishing rod. Yes, that is a thing.

DEBUG MODE

Kawa no Nushi Tsuri 4 J GBC Debug.png

Game Genie codes 091-7FF-E6A + 001-84F-F7A will start the Japanese version in a very basic debug menu offering event testing, area warping, fish CHR viewing and a sound test. The debug menu is completely broken in the international releases, but it can be accessed by using the Game Genie codes 091-84F-F7A + 091-7FF-E6A.

GOTO PRG

Kawa no Nushi Tsuri 4 J GBC GOTO PRG.png

Test various events and warp to any point in the game.

GAME EDIT

Kawa no Nushi Tsuri 4 J GBC GAME EDIT.png

Allows you to edit game variables.

FISH OBJ

Kawa no Nushi Tsuri 4 J GBC FISH OBJ.png

Displays all the fish objects in the game.

SOUND TEST

Kawa no Nushi Tsuri 4 J GBC SOUND TEST.png

Listen to all the wave-crashing music all you want.

Unused Super Game Boy Features

For unknown reasons, Super Game Boy support was never finished, only showing a generic palette appearing identical to the default 1-A.

Regional Differences

The Japanese game comes on a special "Rumble" cartridge powered by AAA battery, like the one used for Pokémon Pinball. This offers force feedback during fishing, earthquakes, etc. International releases of the game came on a standard backward-compatible GBC hybrid cart, with the Rumble option (conspicuously) removed from the main menu.

Japan International
NushiTsuri4-Shindou.png RiverKing2-NoRumble.png

Rumble support can be re-enabled in the ROM by tweaking the header cartridge type byte at 0147 from 1B (ROM+MBC5+RAM+BATT) to 1E (ROM+MBC5+RUMBLE+SRAM+BATT). The Rumble option still doesn't appear in the menu but is set to ON by default. An emulator or flash cart with rumble support is obviously required to take advantage of the function.

(Source: devin)