NPCMovementScriptDex
This is the NPCMovementScriptDex about glitch CC57 scripts. CC57 (both Red/Blue and Yellow) is wNPCMovementScriptPointerTableNum. This article lists various glitch effects by index number, as tested just outside of Red's house in Pallet Town.
Many of the "freezes" seem to be the common bar freeze or "rst $38" freeze.
CC57 scripts will typically disable talking to NPCs or entering battle.
In Red/Blue
Red: 00: No effect 01: Fly away and freeze 02: ACE (C43A) 03: Freeze 04: Execute VRAM 05: Freeze 06: ACE (A000) 07: ACE (B8F0) 08: Execute VRAM 09: Freeze 0A: Taking one step may load a freezing Glitch City/Super Glitch City 0B: Freeze 0C: Freeze 0D: #5 ERROR forever 0E: Freeze 0F: Freeze 10: Cause copies of existing tiles of the screen as artefacts when walking right 11: Freeze 12: Freeze 13: Freeze 14: Walking around may cause freezes with influence on where you are 15: ACE (CC55) 16: Like 10 17: Like 10, 16 18: Freeze 19: Freeze 1A: Freeze 1B: Like 10, 16, 17 1C: Freeze 1D: Freeze 1E: Freeze 1F: Freeze 20: Freeze 21: Reset the game 22: Freeze 23: Freeze 24: Freeze 25: Freeze 26: ACE (CD70) 27: Freeze 28: Freeze 29: Freeze 2A: Disable A text boxes (including even PCs) 2B: Execute VRAM 2C: Like 2A. Sprite artefacts may occur 2D: Disable all joypad input 2E: Execute VRAM 2F: ACE (AF0E) 30: Freeze 31: Like 21 32: Freeze 33: ACE (EAD1) 34: Invalid opcode freeze (0xE3 at D:5177)/Freeze? (VC) 35: Freeze 36: ACE (E678) 37: Freeze 38: ACE (CD0F) 39: Freeze 3A: Like 2A, 2C 3B: Freeze 3C: ACE (D1B1) [*1] 3D: Freeze 3E: ACE (C3AF) 3F: Like/see 34 40: Like 2A, 2C, 3A 41: Freeze 42: ACE (D56F) [*2] 43: Freeze due to invalid opcode 0xD3 at 1600/seemingly nothing happens if ignored 44: Freeze 45: May either freeze or 'soft reset' the game after restarting taking a step can take you to a [[Glitch City]] and freeze the game 46: Unknown/seemingly nothing happens 47: Freeze 48: Freeze/A7 3D corruption pattern 49: Freeze 4A: ACE (EAD1) 4B: Freeze 4C: ACE (F5D5) 4D: Speeds up music slightly 4E: ACE (C126) 4F: View the first party Pokémon summary (glitched). This works if the party menu is unusable/you have no Pokémon too. 50: Walking lag glitch 51: ACE (CC24) 52: ACE (C100) 53: ACE (C421) 54: Freeze 55: ACE (F5D5) 56: Unknown/seemingly nothing happens 57: ACE (CFCD) 58: ACE (C8C8) 59: ACE (F5D5) 5A: Freeze 5B: ACE (CFCD) 5C: ACE (C8C8) 5D: ACE (F5D5) 5E: ACE (DA11) 5F: Freeze 60: ACE (F5D5) 61: ACE (C8C8) 62: ACE (C8C8) 63: ACE (CC55) 64: Unknown/seemingly nothing happens 65: Freeze 66: Freeze 67: Keep walking up on the spot, Fly away, cause ACE (C106). If ret, freeze. 68: Freeze 69: Warp to Route 10, lock up controls while playing glitch sounds. After a long time, ACE (DA20). If ret, blank out the screen and ACE (D7D1). There may be a way to have this not freeze the game, but it's unknown at this time. 6A: Unknown/seemingly nothing happens 6B: ACE (EF18) 6C: ACE (C459) 6D: Freeze 6E: ACE (CDAF) 6F: ACE (C981) 70: Freeze 71: Freeze 72: Freeze (3D A7 corruption pattern) 73: ACE (EA2A) 74: Unknown/seemingly nothing happens 75: Freeze 76: Freeze 77: Freeze 78: Freeze 79: Unknown/seemingly nothing happens 7A: Freeze (3D A7 corruption pattern) 7B: ACE (C6DA) 7C: Force open the Start menu or sometimes get a ##3 Error 7D: Freeze 7E: Unknown/seemingly nothing happens 7F: Freeze 80: Unknown/seemingly nothing happens 81-FF (seem to be same as 01-7F) DD: ACE (F5D5) [*n] *1: Party Pokémon 2 Special stat experience mod 256 *2: PC item 27 *n: In Echo RAM copy of wMissableObjectList byte 8 (can be adjusted another means for permanence)
In Pokémon Yellow
00: No effect 01: Unknown/seemingly nothing happens 02: Freeze 03: ACE (D0B2) 04: VRAM execution (froze at unknown opcode at 8CFA) 05: Seems to corrupt the tileset 06: Unknown/seemingly nothing happens 07: Freeze 08: VRAM execution (froze at unknown opcode at 8CFA) 09: ACE (FA47) 0A: Freeze 0B: Freeze 0C: Unknown/seemingly nothing happens 0D: Freeze (00 90 3E 80 corruption pattern) 0E: Freeze 0F: Locks up controls, hides NPC sprites, corrupts audio for a while, then freezes 10: Seems to corrupt the tileset similar to 05 11: Freeze 12: Locks player, invisible text box with Start menu open, pressing A or B freezes the game, other buttons seemingly do nothing 13: Play raw audio (similar to Pikachu cry) then ACE (D7E1). If ret, still a freeze 14: Unknown/seemingly nothing happens 15: ACE (FA86) [*1] 16: Seems to corrupt tileset like 05, 10 17: Seems to corrupt tileset like 05, 10, 16 18: Freeze (00 90 3E 80 corruption pattern) 19: Freeze 1A: Freeze 1B: Seems to corrupt tileset like 05, 10, 16, 17 1C: Freeze 1D: Freeze 1E: Freeze 1F: Freeze 20: Freeze 21: ACE (CD1C) 22: ACE (CD3E) 23: Freeze 24: Walking lag glitch 25: Freeze 26: ACE (F606) 27: ACE (CD3E) 28: Freeze 29: Walking lag glitch 2A: Freeze 2B: Unknown/seemingly nothing happens 2C: ACE (D731) 2D: ACE (F606) 2E: ACE (CD78) 2F: Unknown/seemingly nothing happens 30: Freeze 31: ACE (CC3D) 32: ACE (CF1A) 33: Freeze 34: ACE (E5C4) 35: Freeze 36: Unknown opcode 0xE4 at 33CD. If skipped seemingly nothing happens. 37: Freeze 38: ACE (FA22) 39: Freeze 3A: ACE (C0F0) 3B: Freeze 3C: ACE (EFEA) 3D: Freeze 3E: Lock up controls for a while, then display the message that the Safari Zone game is over. May proceed to run ACE (CD15). If ret, player steps down spinning and warps but loops down the screen seemingly infinitely 3F: Freeze 40: Freeze 41: ACE (F002) 42: ACE (EA7C) 43: See 3E 44: ACE (CDD0) 45: Unknown opcode 0xD3 at 284C. If skipped over (i.e. like on Virtual Console) may display invisible text box and Start menu, and freeze game if press A or B. 46: Freeze 47: Lock moving, invisible text box and Start menu, freeze game if press A or B. 48: Walking lag glitch 49: ACE (EA0C) 4A: Unknown/seemingly nothing happens 4B: Freeze 4C: ACE (F5D5) 4D: Freeze (3E D2 corruption pattern) 4E: Freeze 4F: Freeze 50: Freeze 51: Freeze 52: Invisible text box and Start menu, if press A or B, heavily corrupt screen and freeze game. 53: ACE (C8A7) 54: Freeze 55: ACE (F5D5) 56: Unknown/seemingly nothing happens 57: In Red's house 1F flower tiles appear on the benches. They don't animate. 58: Freeze 59: ACE (F5D5) 5A: Freeze 5B: See 57 5C: Freeze 5D: ACE (F5D5) 5E: ACE (C93E) 5F: Freeze 60: ACE (F5D5) 61: Freeze 62: Freeze 63: ACE (FA86) 64: Seems to corrupt tileset like 05, 10, 16, 17, 1B 65: This behavior is a little like 3E but more events happen; after short while player warps to Saffron City, then Sea Route 19, then a Route 2 gate (0x2F), then the player does a warping animation and rises up the screen looping around seemingly infinitely (similar to the moving down seemingly infinitely in 3E) 66: Freeze 67: Lock up controls with invisible menu and Start menu (lock up but strictly not a freeze?) 68: Freeze (00 27 39 90 3E 80 corruption pattern) 69: Walk down on the spot and constantly corrupt the screen. When done from outside of Red's house 1F may enter it (negating the Red moves down the screen and loops effect later). Eventually get Safari Zone game over message, where the effect repeats, but strange warps happen. Game eventually freezes or loop down screen effect returns. Very fun but not sure if can be manipulated to avoid a freeze. 6A: Freeze 6B: See 67 6C: Freeze 6D: Freeze 6E: ACE (CDAF) 6F: ACE (C322) 70: Freeze 71: Bring up invisible text box with Start menu open and lock moving. If press A, get invisible Yes/No prompt. All options (Yes, No, B press) may result in a freeze. Can reload the save file and seemingly nothing happens (if not corrupted) 72: Walking lag glitch and eventual freeze 73: Brings up invisible text box with Start menu open. Pressing A/B results in unknown opcode 0xE3 at A:78DC. If skipped over, freeze. 74: Seems to corrupt tileset like 05, 10, 16, 17, 1B, 64 75: Freeze 76: ACE (D35D) 77: Partially soft reset game but the CC57 script is retained, resulting in a soft reset loop until the player waits on the title screen for that soft reset. 78: VRAM execution (froze at invalid opcode at 8498) 79: Invalid opcode 0xD3 at 0:48E0. If skipped over seemingly nothing happens. 7A: Walking lag glitch and eventual freeze 7B: Invalid opcode 0xD3 at 0600. If skipped over, ACE (D1D1) but freeze. 7C: ACE (D211) 7D: Freeze 7E: Freeze 7F: Freeze 80: ACE (D0B4) 81-FF: Same as 01-FF? *1: In stored Pokémon data (Pokémon 6)