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-placeholder+====== Metroid: Zero Mission Hex Tweaks ====== 
 + 
 +“Hex Tweaks” are loosely defined as sets of single-or-multiple-byte-changes that can be preformed for desirable effects. There is no clearly-defined upper limit for the number of bytes that can constitute a 'hex tweak' but they are usually less than 16 bytes' worth of changes. Most ZM hex changes are 2 byte changes. All that is needed to perform the hex tweak is a hex editor such as HxD. The tweak will give you an offset, original byte values, and the new values that you will enter in. 
 + 
 +===== Samus Tweaks ===== 
 +Tweaks related directly to Samus. 
 + 
 +0x9522 = 04 to 01 
 +Unmorphing makes samus stand all the way up. 
 + 
 +0x879E = 08 4C to 05 E0 
 +Disables the crouch sound. 
 + 
 +0x606CC = 7F 07 to ?? ?? 
 +Y start position after loading a new game. To find your value use the following formula. (64n-1) Where N is the height in blocks. 
 + 
 +0x8F92 = E0 79 to 28 E0 
 +Disables walljumping. 
 + 
 +0x6A36 = 0B to 08 (while moving left/right) 
 +0x8D4C = 0C to 08 (respin) 
 +0x8E64 = 0C to 08 (while turning back mid-air) 
 +0x8EEC = 0C to 08 (spinjump) 
 +0x6BBC = 01 D1 to 08 20 (initial spinjump pose) 
 +Disables spinjumping. 
 + 
 +0x8F72 change to 0EDC 
 +0x8F90 change to C046 
 +0x6138 change to D061 
 +Enables walljumping with spacejump and screw attack. 
 + 
 +0x250174 = 2 to ?? (Frame 1) 
 +0x250184 = 2 to ?? (Frame 2) 
 +0x250194 = 2 to ?? (Frame 3) 
 +Power Suit Walljump animation frame timers. Adjusting these can reduce or lengthen WJ delay. 
 + 
 +0x29F984 = 2 to ?? (Frame 1) 
 +0x29F994 = 2 to ?? (Frame 2) 
 +0x29F9A4 = 2 to ?? (Frame 3) 
 +Zero Suit Walljump animation frame timers. Adjusting these can reduce or lengthen WJ delay. 
 + 
 +0x8F68 = 18 20 to 04 E0 
 +Space jump has no delay as to when the player can jump again. 
 + 
 +0x8F6C = 40 to ?? 
 +Delay before the player can spacejump again. Shorter jumps allow the player to jump quicker. Higher jumps take longer. 
 + 
 +0x8F50 = 08 1C to 03 E0 
 +Spacejump works underwater/lava/acid and without Gravity Suit. 
 + 
 +0x81DA = 08 48 to 03 E0 
 +0x823E = 00 21 to 14 E0 
 +Screw Attack works under water/lava/acid without Gravity Suit. 
 + 
 +0x7020 = 30 to ?? 
 +Invincibility timer. Max of 255 (FF) frames. 
 + 
 +0x5FD4 = 38 4A to 04 E0 
 +Always makes powergrip work, (even without the powergrip item.) 
 + 
 +0x61D0 = 08 to ?? 
 +Walljump timer, slows Samus' X velocity when near the wall for this many frames. Max is FF. 
 + 
 +0x7024 = 20 72 to C0 46 
 +Getting damaged no longer resets shinespark timer. 
 + 
 +0xA720 = 01 to 00 
 +Disables jump echoes. 
 + 
 +0x951E = 0F to 00 
 +Stops unmorph glow. 
 + 
 +0x9608 = 03 48 to 08 E0 
 +0x979C = 02 48 to 06 E0 
 +0x98BC = 02 48 to 06 E0 
 +Allows Samus to stay gripped to a ledge while a power bomb is exploding. 
 + 
 +0x8306 = 20 to 30 
 +0x830A = 00 to 30 
 +0x830D = D0 to D1 
 +Gravity does not protect against heat. Only protects against lava if Varia is also equipped. 
 + 
 +0xA734 = 01 to 00 
 +Disables Speedboost and Shinespark echoes. 
 + 
 +0x8C88 = 04 48 to 33 E0 
 +Disables shinesparking. 
 + 
 +===== Enemy/Boss Tweaks ===== 
 +Tweaks related to enemies and bosses. 
 + 
 +0x1D482 = 03 20 to 05 E0 
 +0x1D57C = 03 20 to 05 E0 
 +0x1D6AE = 03 20 to 04 E0 
 +0x1D772 = 03 20 to 04 E0 
 +0x1D84C = 03 20 to 04 E0 
 +Makes zipline and button always on. 
 + 
 +0x3DCF4 = 03 20 to 06 E0 
 +Mua spawns even if zipline event is not set. 
 + 
 +0x2CC16 = 04 29 to 0E E0 
 +Black pirates are weak to all beams. 
 + 
 +0x19C8A = 06 20 to 08 E0 
 +Skips Kraid Tourian Statue activating cutscene. 
 + 
 +0x33B3C = 06 20 to 0B E0 
 +Skips Ridley Tourian Statue activating cutscene. 
 + 
 +0x32532 = 05 20 to 01 E0 
 +Skips Ridley Encounter cutscene. 
 + 
 +0x322C8 = 03 20 to 06 E0 
 +Ridley fight will begin no matter what. 
 + 
 +0x322CA = 17 to ?? 
 +Event Ridely will check for before starting fight. If event isn't set, fight will not begin. 
 + 
 +0x21292 = 0B 48 to 19 E0 
 +Deorem spawns regardless if missiles were obtained. 
 + 
 +0x23158 = 04 49 to 04 E0 
 +Make Deorem fight last until one of you dies. 
 + 
 +0x232BE = 58 88 to 05 E0 
 +Deorem drops no item upon death. 
 + 
 +0x43178 = 11 1C to 08 E0 
 +Make doors unlock right when Imago dies. 
 + 
 +0x410 = 09 to 08 
 +Makes game end from Samus' Ship without a cutscene after killing Mother Brain. 
 + 
 +0x3D0E6 = 1120 to 17E0 
 +Mother Brain's death no longer sets a timer, explosions, or makes the beeping noises. 
 + 
 +0x53980 = 0F to 01 
 +Make the escape timer work for MB and Mecha regardless if one of them isn't set. 
 + 
 +0x4CDE6 = B4 to 18 
 +0x4CF36 = 11 20 to 03 E0 
 +0x4CF52 = 0C 48 to 04 E0 
 +0x4E05A = FE F7 to 01 E0 
 +Killing Mecha no longer sets a timer or beeps and unlocks doors quicker. 
 + 
 +0x46476 = 03 20 to 04 E0 
 +Makes power bomb tube breakable at any time. 
 + 
 +0x35D58 = 01 to 00 
 +Removes slowed physics when grabbed by a Metroid. 
 + 
 +0x112A9 = D8 to E0 
 +Enemies no longer get stunned when shot. 
 + 
 +0x23b84 = 2A to ?? 
 +Event Dessgeega will check for before starting fight. If event isn't set, fight will not begin. 
 + 
 +0x23b82 = 03 20 to 09 E0 
 +Dessgeega will start fighting at anytime 
 + 
 +===== Weapon Tweaks ===== 
 +Tweaks related to weapons. 
 + 
 +0x50AC2 = 0C to 04 
 +Make missile vulnerability only include normal missiles. 
 + 
 +0x345CB4 = 0C to 04 
 +Make Missile doors only open with normal missiles. 
 + 
 +0x345ABC = 0C to 04 
 +Prevent Super Missiles from breaking normal never reform missile blocks. 
 + 
 +0x345ABE = 0C to 04 
 +Prevent Super Missiles from breaking normal no reform missile blocks. 
 + 
 +0x54E16 = 0A 20 to 06 E0 
 +Removes screen shake and enemy fall/stun effect when a Super Missile explodes. 
 + 
 +0x57786 = 78 20 to 02 E0 
 +Removes screen shake and enemy fall/stun effect when a Power Bomb explodes. 
 + 
 +0x521D8 = 13 to 31 
 +Apply this and lay some bombs for a good time. 
 + 
 +0x4F9FE = 80 18 to C0 46 
 +0x4FA0E 40 19 to C0 46 
 +Samus speed no longer added to projectile speed like in SM. 
 + 
 +===== Interface Tweaks ===== 
 +Tweaks related to Map, HUD, Title Screen, etc. 
 + 
 +52326 = 02 to ?? (First half Y position) 
 +52378 = 02 to ?? (Second half Y position) 
 +52390 = 20 to ?? (Second half X position) 
 +HUD Energy positions (in pixels) (WIP, will need ASM to change first half X position) 
 + 
 +52484 = 40 46 to ?? 20 } (Missiles Y, first byte) 
 +52486 = 06 74 to 10 70 
 +5249C = 36 to ?? (Missiles X) 
 +524D8 = 02 to ?? (Super Missiles Y) 
 +524F0 = 50 to ?? (Super Missiles X) 
 +5252C = 02 to ?? (Power Bombs Y) 
 +52544 = 6A to ?? (Power Bombs X) 
 +HUD Ammo positions (in pixels) 
 + 
 +5257E = 0A to ?? (Minimap flicker Y) 
 +52596 = DE to ?? (Minimap flicker X) 
 +52602 = FA to ?? (Minimap Y) 
 +5261A = D6 to ?? (Minimap X) 
 +HUD Minimap positions (in pixels) 
 + 
 +0x52888 = 1D 2F to 14 E0 
 +Disables health alarm. 
 + 
 +0x5ADCE = A0 78 to 02 E0 
 +Getting an item no longer updates the map (Missiles, ect.). 
 + 
 +0x5ADFE = 60 8A to 08 E0 
 +Getting an ability no longer updates map. 
 + 
 +0x6E1AA = 03 to 02 
 +World map will not pop up if A is pressed on map screen. 
 + 
 +0x6896C = 0A 48 to 05 E0 
 +Always show items collected and timer on pause screen. 
 + 
 +0x6A628 = 25 49 to 0A 1C 
 +Prevents Jap map tiles from being overwritten in VRAM, making them usable. 
 + 
 +0x57C88 = 11 48 to 0F E0 
 +Disables pausing. 
 + 
 +6896C = 0A 48 to 05 E0 
 +Always show items collected and timer on pause screen 
 + 
 +0x2D4 = 01 to 02 
 +Skip boot intros. 
 + 
 +0x77110 = 91 42 to 04 E0 
 +Disable title screen demos. 
 + 
 +0x60DEA = 0F to ?? 
 +Index of last demo to play, (ex: if you want 4 demos total, set this to 03). 
 +Music Related 
 + 
 +0x28856 = 03 20 to 08 E0 
 +Makes pirate alarm music no longer play when triggering the pirate alarm. 
 + 
 +0x28812 = 03 20 to 06 E0 
 +Makes pirate ambiance music no longer play when the pirate alarm goes off. 
 + 
 +0x3A2B2 = 43 to ?? 
 +Song for Chozo Guardian fight. Change to valid song value. 
 + 
 +0x66B7C = 12 to ?? 
 +Song for Chozo Guardian Cutscene. Change to valid song value. 
 + 
 +0x28862 = 45 to ?? 
 +Song for pirate alarm. Change to valid song value. 
 + 
 +0x77218 = 02 to ?? 
 +Song for title screen. Change to valid song value. 
 + 
 +0x7C85C = 09 to ?? 
 +Song for fileselect. Change to valid song value. 
 + 
 +0x65840 = 35 to ?? 
 +Song for Ridley fight. Change to valid song value. 
 + 
 +0x2149C = 3C to ?? 
 +Song for Deorem fight. Change to valid song value. 
 + 
 +0x21E0A = 01 to ?? 
 +Song when Deorem dies. Change to valid song value. 
 + 
 +0x4C2D8 = 41 to ?? 
 +Song that plays for Mecha fight. Change to valid song value. 
 + 
 +0x4CF56 = 08 to ?? 
 +Mecha-Ridley Escape song. Change to valid song value. 
 +Misc. 
 + 
 +3A2: 0C → 08 
 +Selecting “Gallery” option on file select plays the credits instead of opening the gallery. 
 + 
 +0x62E5C = 33 02 → 63 00 
 +No exiting ship, jump or footsteps sounds on starting new game. 
 + 
 +0x60F96 = 07 to 1E 
 +0x60FA4 = F0 0B to D4 13 
 +No longer lose upgrades or suit after escaping Tourain. (You may want to alter the cutscene that plays.) 
 + 
 +0x4AFE6 = 4A to ?? 
 +Change to whatever event you'd like the blue ship to activate to. 
 + 
 +0x4AFEF = D1 to E0 
 +The blue ship always activate. 
 + 
 +0x10266 = 91 42 to 17 E0 
 +Samus' Ship no longer refills health 
 + 
 +0x102AA = 91 42 to 17 E0 
 +Samus' Ship no longer refills missiles. 
 + 
 +0x102EE = 91 42 to 17 E0 
 +Samus' Ship no longer refills Super Missiles. 
 + 
 +0x10332 = 91 42 to 17 E0 
 +Samus' Ship no longer refills Power Bombs. 
 + 
 +0x2C75C = F0 to ?? 
 +Pirate alarm timer. Value is multiplied by two to get the true value used for the alarm. So F0 = 1E0, Ex: 3D = 7A 
 + 
 +0x12F00 = 05 to ?? 
 +Amount of health small orbs restore. 
 + 
 +0x12F20 = 14 to ?? 
 +Amount of health big orbs restore. 
 + 
 +0x12F40 = 02 to ?? 
 +Amount Missile drops restore. 
 + 
 +0x12F60 = 02 to ?? 
 +Amount Super drops restore. 
 + 
 +0x12F80 = 01 to ?? 
 +Amount Power Bomb drops restore. 
 + 
 +0x3459C4 = 64 to ?? (Easy) 
 +0x3459C8 = 64 to ?? (Normal) 
 +0x3459CC = 32 to ?? (Hard) 
 +Energy Tank Values 
 + 
 +0x3459C5 = 5 to ?? (Easy) 
 +0x3459C9 = 5 to ?? (Normal) 
 +0x3459CD = 2 to ?? (Hard) 
 +Missile Tank Values 
 + 
 +0x3459C6 = 2 to ?? (Easy) 
 +0x3459CA = 2 to ?? (Normal) 
 +0x3459CE = 1 to ?? (Hard) 
 +Super Missile Tank Values 
 + 
 +0x3459C7 = 2 to ?? (Easy) 
 +0x3459CB = 2 to ?? (Normal) 
 +0x3459CF = 1 to ?? (Hard) 
 +Power Bomb Tank Values 
 + 
 +0x3459C0 = 63 to ?? (Energy) 
 +0x3459C1 = 0 to ?? (Missiles) 
 +0x3459C2 = 0 to ?? (Super Missiles) 
 +0x3459C3 = 0 to ?? (Power Bombs) 
 +Starting Energy/Ammo 
 + 
 +0x45132 = 0B D1 to 6E E0 
 +0x4521A = 1E to 0 
 +0x45228 = 1A to 16 
 +0x45236 = 04 48 to 02 E0 
 +Ship no longer refills energy or ammunition. 
 + 
 +0x5E793 = D0 to E0 
 +All hatches with more than one hit's worth of “health” will flash. 
 + 
 +0x345CB2 = 00 to ?? 
 +Amount of hits required to open a blue hatch. 
 + 
 +0x345CB6 = 00 to ?? 
 +Amount of Missiles required to open a red hatch. 
 + 
 +0x345CBA = 00 to ?? 
 +Amount of Super Missiles required to open a green hatch. 
 + 
 +0x345CBE = 00 to ?? 
 +Amount of Power bombs required to open a yellow hatch. 
 + 
 +0x5CE36 = 06 to ?? 
 +0805CE54 06 to ?? 
 +Door Transition speed. 
 + 
 +0x5EF8A = 06 48 to 03 E0 
 +All door transitions are hatchless variant (Faster) 
 + 
 +0x61116 = 08 D1 to C0 46 
 +Press B to skip elevator/boss intro cutscenes. 
 + 
 +0x345B4A 3C → ?? 
 +number of frames it takes for slow crumble blocks to break 
 + 
 +7DE0E = 04 D1 to 11 D1 
 +Makes hard mode always available 
 + 
 +55FA8 = 11 48 to 64 E0 
 +Disables varia suit animation 
 + 
 +0x56010 = df to ff 
 +0x600ee = 20 to 00 
 +If Gravity Suit has not been acquired, it will not be activated after defeating ruin test 
 + 
 +13C08 + (SpriteID - 22) * 4 
 +to 
 +DC = left 
 +D4 = right 
 +To change a Chozo statue's direction 
 + 
 +0x75EA78 - 29 02 02 08 to 81 72 04 08 
 +0x75ED70 - 48 39 2D 08 to 74 D6 30 08 
 +All save stations use Chozodia AI/Graphics (healing/ammo refill) 
 + 
 +Editing the text in the opening before the title screen. 
 +Start at 0x845F468 (“Emergency Order”), 0x845F4D0 (“Exterminate all…”), or 0x845F60A (“And defeat the…”) 
 +Every six bytes will be the tile's character number. 
 +For example, if you wanted “Emergency Order” to say “Fnergency Order”, you would do this: 
 +0x845F468 08 → 09 
 +0x845F46E 0E → 0F 
 + 
 +03 is a blank character 
 +1E is a period 
 +Please note that there isn't a letter K for some reason. 
zm/locations/tweaks.1740434519.txt.gz · Last modified: by felixwright