Shadow the Hedgehog

Shadow the Hedgehog is a 2005 video game developed by Sega Studio USA, the former United States division of Sega's Sonic Team. Featuring the titular fictional character Shadow the Hedgehog from Sega's Sonic the Hedgehog series, the game was revealed at the March 2005 Walk of Game inauguration of Sonic, the series' main character. Shadow the Hedgehog is the third game (and the last in the Sonic series) developed by Sega Studio USA, which was merged back into Sega's Japanese division in early 2008.

2 Player Mode
2P mode is playable only with EFB Copies to Texture Only disabled, otherwise the right screen is messed up.

White Stripes
Much like Sonic Heroes, non-native internal resolutions or anti-aliasing will cause white stripes to appear on the top left of the screen.

This can be worked around by disabling Scaled EFB Copy and setting the internal resolution to 2.5x, 3x, 5x, or 7x. But there is limited benefit to using this; unlike Sonic Heroes the game uses a screenspace blur effect for depth of field, so, without scaled EFB Copies the higher resolution is not as clear as with scaled EFB Copies. You can also clear the white lines temporarily by changing the internal resolution, but they will return upon any effect using EFB Copies.

16:9 Aspect Ratio Fix
The built-in Widescreen Hack causes clipping issues. The following Gecko codes work as a replacement, causing fewer issues. To avoid conflicts, make sure that Widescreen Hack is disabled while using these codes.

NTSC-US
C249475C 00000003 3DC03F40 91C22000 C2222000 EC110032 D0030004 00000000 C2484334 00000002 3DC04000 91C22000 C0822000 00000000 C2036764 00000006 3DC08057 3DE03F40 91EEE098 3DE0BF40 91EEE084 4E800421 3DE03F80 91EEE098 3DE0BF80 91EEE084 60000000 00000000 C236328C 00000006 3DC08057 3DE03F40 91EEE098 3DE0BF40 91EEE084 4E800421 3DE03F80 91EEE098 3DE0BF80 91EEE084 60000000 00000000 C2363180 00000006 3DC08057 3DE03F40 91EEE098 3DE0BF40 91EEE084 4E800421 3DE03F80 91EEE098 3DE0BF80 91EEE084 60000000 00000000 C20BCA54 00000006 3DC08057 3DE03F40 91EEE098 3DE0BF40 91EEE084 4E800421 3DE03F80 91EEE098 3DE0BF80 91EEE084 60000000 00000000 C2345D98 00000006 3DC08057 3DE03F40 91EEE098 3DE0BF40 91EEE084 4E800421 3DE03F80 91EEE098 3DE0BF80 91EEE084 60000000 00000000

PAL
C24957AC 00000003 3DC03F40 91C22000 C2222000 EC110032 D0030004 00000000 C2485384 00000002 3DC04000 91C22000 C0822000 00000000 C2306564 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000 C2036764 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000 C23640D4 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000 C2363FC8 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000 C20BCE3C 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000 C2346BA0 00000006 3DC08057 3DE03F40 91EEF158 3DE0BF40 91EEF144 4E800421 3DE03F80 91EEF158 3DE0BF80 91EEF144 60000000 00000000

Remove White Stripes
Using high internal resolutions causes white stripes that can be removed with a Gecko Code. The following Gecko Code will remove the stripes in all versions of the game. (This removes a lighting layer from the game entirely. All models that use this lighting are STILL visible, because they have a 3D model to back it up. No worries there.).

Assumed reason for glitch: There is a layer set in Shadow the Hedgehog that uses this lighting. The lighting is used for many things to make them appear more powerful, such as some bullets and Shadow the Hedgehog in his 'Chaos Blast' or 'Chaos Control' form. This lighting also is completely outside the viewing range if you're using the original internal resolution. However, if you do decide to boost the internal resolution to any extent, this puts this lighting layer onscreen and... definitely visible. Once again, this code will eradicate this lighting effect.

Region-Free
F6000001 80008180 4BFFE6F9 807F00DC 14000000 60000000 E0000000 80008000