Shadow of the Ninja: Shadow of the Ninja - Black Bar Removal

Shadow of the Ninja: Black Bar Removal is a ROM hack for the Nintendo Entertainment System that enhances the original game Shadow of the Ninja. This patch eliminates the black bar on the left side of the screen, resolves underlying artifacting issues, and allows players to start the game immediately after the company logo. It is compatible with the USA ROM and requires the Lunar IPS tool for application.

This hack removes the black bar on the left side of the screen.

It fixes any artifacting hidden underneath.

Also let's you start the game right after the company logo.

This hack is compatible with the USA ROM of Shadow of the Ninja.

You can apply this patch using Lunar IPS.

Documentation has been included.

Hope you enjoy.

DOCUMENTATION

6502 Instruction Set:
https://www.masswerk.at/6502/6502_instruction_set.html

MAME Debugging:
mame nes -cart roms\sotn.nes -debug

SHOW MENU AFTER COMPANY LOGO:

1F89F: CHANGE:
F88F lda $0e A5 0E |
F891 bne $f89e D0 0B |
F893 lda #$0f A9 0F | F893 lda #$1c A9 1C
F895 sta $0105 8D 05 01 | F895 sta $0e , nop 85 0E EA // $0E = 1C
F898 sta $0106 8D 06 01 | F898 nop nop nop EA EA EA
F89B sta $0107 8D 07 01 | F89B nop nop nop EA EA EA

DISABLE BLACK BAR:

1E3E7: CHANGE:
E3D7 lda #$18 A9 18 | E3D7 lda #$1e A9 1E // $09 = 1E... This gets stored in $2001 (PPUMASK)
E3D9 sta $09 85 09 |

FIX LEFT ARTIFACTING:

1F115: CHANGE:
F105 lda $36 A5 36 |
F107 sbc $06c2, x FD C2 06 |
F10A sta $36 85 36 |
F10C lda $37 A5 37 |
F10E sbc $06d2, x FD D2 06 | F10E jsr $9fa3 20 A3 9F // Jump to below (if screen is scrolling left,
F111 sta $37 85 37 | F111 nop nop EA EA // or it has reached left limit)
F113 jsr $f2b9 20 B9 F2

1DFB3: CHANGE:
9FA3 brk brk 00 00 | 9FA3 sbc $06d2, x FD D2 06
9FA5 brk brk 00 00 | 9FA6 cmp $27 C5 27 // $37 (current screen-x) - $27 (screen-x left limit)
9FA7 brk brk 00 00 | 9FA8 bpl $9fb0 10 06
9FA9 brk brk 00 00 | | 9FAA lda #$00 A9 00 // $37 is lower than $27. Not allowed.
9FAB brk brk 00 00 | | 9FAC sta $36 85 36 // $36 = 00
9FAD brk brk 00 00 | | 9FAE lda $27 A5 27 // $37 = $27
9FAF brk brk 00 00 | 9FB0 sta $37 85 37
9FB1 brk brk 00 00 | 9FB2 rts 60

Free Space: 1DFB3 - 1E000

Database match: Shadow of the Ninja (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: C35EA6624D37D57953E4C06197BE5C54931A7139
File CRC32: F74A04AB
ROM SHA-1: B8F6BF251865A35571C04C509989A61065745440
ROM CRC32: DDD90C39

NES Cores

Time to Beat

Main Story 1h 5m

Release Date

Sep 1, 2023

1 years ago

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