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NHL Breakaway 99 (Nintendo 64)

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Title Screen

NHL Breakaway 99

Developer: Iguana West
Publisher: Acclaim Entertainment
Platform: Nintendo 64
Released in US: November 27, 1998
Released in EU: December 1998

SourceIcon.png This game has uncompiled source code.
DevTextIcon.png This game has hidden development-related text.
TextIcon.png This game has unused text.
SoundtestIcon.png This game has a hidden sound test.

NHL Breakaway 99 is a lot like its predecessor, with only some superficial new stuff added and teams swapped around.

Source Code Fragments

Uncompiled Source Code
Undoubtedly the most uncompiled source code ever seen in an N64 game.

Developer Texts

There are loads of error and debug texts scattered throughout. They can be found at the locations listed below in the US ROM.


Assertion failed: file "%s", line %d
Player %d (%d) status == injured, but not in team %d injured list!
Player %d (%d) in team %d injured list, but not injured status!
Looking for roster player
Error finding line replacment


 File type error, want: %x, found %x
 Want: (%c%c%c...%c) found (%c%c.%c%c)
 File version error, want: %x, found %x
 CHKFILE: Structure size mismatch, want: %d, found %d
 Task stack overflow
 **Stack overflow detected
 **Task alloc overflow
 Thing list full
 ERROR - Load_debug_font: VRAM allocation failed
 Loading DEBUG font @%d,%d
 [ %d %d %d ].[ %d %d %d ].[ %d %d %d ].(%d, %d, %d)
 [ %d %d %d ].[ %d %d %d ].[ %d %d %d ]
 ERROR: Out of OT slots
 ERROR trying to allocMem in Init_font_driver!!!
 Error using Font_position, fontopen == NULL
 Error using Font_position_actor, fontopen == NULL
 Random Seed: $%x
 Files Loaded %d
 *ERROR MDF error
 MEM: ERROR! Unrecognized fit method
 MEM: ERROR! No Region Handles left
 MEM: ERROR! No Internal Memory Handles left
 MEM: ERROR! Total Allocs %lu - HeapLeft %lu
 MEM: Alloc: %lu
 MEM: freeMem Failed - Addr OOR (%08x)
 MEM: freeMem Failed - Addr Not Allocated (%08x)
 MEM: ERROR! freeMem Failed - Addr OOR (%08x)
 MEM: ERROR! freeMem Failed - Addr Not Allocated (%08x)
 MEM: ERROR! Memory Overrun 0x%08x - 0x%08x (0x%08x)
 MEM: Free Memory: %lu of %lu Free Handles %d
 MEM: Region: %08x - %08x
 MEM: AllocList: Total %lu Largest %lu
 MEM: A %08x - %08x -- %06lu
 MEM: FreeList: Total %lu Largest %lu
 MEM: F %08x - %08x -- %06lu
 MEM: Free: %lu Biggest: %lu Free Handles: %d
 ERROR: Display list full
 [%s:%d] file (%d) not in range(0..%d)
 *** ERROR in _loadFromRom [%s:%d] could not alloc %d bytes for compressed data
 *** ERROR in loadFile [%s:%d] could not alloc %d bytes for dest_buffer


Making CAMERA3D object
Making CAMERA2D object
global_flag 0x%x %d
ERROR gosub too deep
ERROR endsub without gosub


ERROR: Actor allocation failed
Out of Viewports
Devapor_buffer: Couldnt malloc out buffer!
Devapor_buffer: Mem corrupted

Sound Test

NHL Breakaway 99 (Nintendo 64)-soundtest.png

A sound test menu can be accessed by pressing R + A buttons while over a main menu option when the below code is active.

Version GameShark code
US D1064584 8010
8113AB06 0033
Europe D10645C4 8010
8113AB46 0033
(Source: Original TCRF research)

Unused Cheat Menu Text

Stored among the cheat menu text at D79C9 are a few unused options:

Sound Test Menu
Tickerbar Frequency
Elementary, my dear Cactus.
This needs some investigation.
Discuss ideas and findings on the talk page.
Specifically: Can any of the above be accessed?