* menu_items: fix the real-bug-tier compiler warnings (#691 batch 1) Six fixes, all in menu_items.c, all verified by menu playtest on macOS: - BSWAP16(*color0++) advanced the pointer twice per pixel on little-endian builds (the macro evaluates its argument twice) and mixed bytes from two different pixels. Read first, increment separately. Note: this function (func_8009A9FC) currently has no callers, so the corruption was latent, not live. - func_8009B9D0 fell off the end on a lookup miss, returning garbage (the existing code comment already suspected this). The miss path now returns the display list head unchanged, i.e. draws nothing. - update_ok_menu_item read an uninitialized stack slot for unknown menu item types; now selects an explicit no-animation value, matching what the garbage read did in practice. - pause_menu_item_box_cursor: removed the three empty 'if (x2);' matching artifacts. The x/y/z spin state itself is untouched. - func_800A1FB0: initialized var_s4/var_s5 against the guarded-but-warned switch default. - func_800A54EC: initialized the pause cursor position pointer against its unreachable mode-switch default (would have been a null-deref class bug if mode values ever grew). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * collision: define the G_ENDDL opcode shifts, return 0 when no tyre surface found Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * replays: cast staff-ghost pointer comparisons, return 0 for empty ghost buffer Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * update_objects: return 0 from conditional step helpers, fix TLUT pointer comparison, init train draw distances Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * render_player: remove the impossible lamp range (vanilla bug, never glowed on N64 either) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * math_util_2: return the vector, not the address of the parameter slot Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Crab: remove inner declaration shadowing the initialized objectIndex Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * editor: honor InverseMatrix failure (bool was compared against 2, always true) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Track.h: drop dead null checks on array members Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * shells: drop always-true angle and surface gates (behavior unchanged, s16 made them tautological) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * particles: make the no-return particle setters void Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * effects/stubs/skybox/main: align signatures with functions that return nothing Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * menus/save: type the pak status variable as s32, return BAD_READ on the fall-off path Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * audio: remove uninitialized-read matching artifacts, init isSound Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * code_80005FD0/code_80086E70: init dead bomb kart pointer and the no_init variable Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * port/engine UI: fix printf-style format types and non-literal format string Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * render_objects: feed the unused texture param to the uninitialized img walker Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Format the changed lines per .clang-format Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Address review: strip explanatory comments, drop vec3f pointer returns Comments moved to the PR record; the one flagged worth keeping stays. vec3f_set_xyz/normalize/cross_product return void now since the out argument is the interface and nothing used the pointer. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Update actors_extended.c * Add checkbox for 'Shells Shoot Straight' option * Update render_player.c * Update PortMenu.cpp * Update render_player.c * Update actors_extended.c * Update render_player.c --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> Co-authored-by: MegaMech <MegaMech@users.noreply.github.com>
Discord
Official Discord: https://discord.com/invite/shipofharkinian
If you're having any trouble after reading through this README, feel free ask for help in the SpaghettiKart Support text channels. Please keep in mind that we do not condone piracy.
Quick Start
SpaghettiKart does not include any copyrighted assets. You are required to provide a supported copy of the game.
1. Verify your ROM dump
The US ROM is the only supported version. You can verify you have dumped a supported copy of the game by using the SHA-1 File Checksum Online at https://www.romhacking.net/hash/. The hash for a US ROM is SHA-1: 579C48E211AE952530FFC8738709F078D5DD215E.
2. Verify your ROM is in .z64 format
Your ROM needs to be in .z64 format. If it's in .n64 format, use the following to convert it to a .z64: https://hack64.net/tools/swapper.php
2. Download SpaghettiKart from Releases
3. Generating the O2R from the ROM
Windows
- Extract every file from the zip into a folder of your choosing.
- Run "Spaghettify.exe" and select your US ROM.
Linux
- Extract every file from the zip into a folder of your choosing.
- Ensure
zenityorkdialogpackage is installed. - Run "spaghetti.appimage" and select your US ROM. You may have to chmod +x the appimage via terminal.
Nintendo Switch
- Run one of the PC releases to generate an
mk64.o2rfile. After launching the game on PC, you will be able to find these files in the same directory asSpaghettify.exeorspaghetti.appimage. - Copy the files to your sd card
4. Play
- Launch
Spaghettify.exeCongratulations, you are now sailing with SpaghettiKart! Have fun!
Configuration
Default controls configuration
| N64 | A | B | L | R | Z | Start | Analogue stick | C buttons | D-Pad |
|---|---|---|---|---|---|---|---|---|---|
| Keyboard | Shift | Ctrl | Q | Space | Z | Enter | Arrow keys | TGFH (↑ ↓ ← →) | Num 8 2 4 6 |
| SDL Gamepad | A | X | LB | RB | LT | Start | L-Stick | R-Stick Up, B, Y, R-Stick Right (↑ ↓ ← →) | D-Pad |
Other shortcuts
| Keys | Action |
|---|---|
| F11 | Fullscreen |
| Tab | Toggle Alternate assets |
| Ctrl+R | Reset |
| Esc | Settings |
Graphics Backends
Currently, there are three rendering APIs supported: DirectX11 (Windows), OpenGL (all platforms), and Metal (macOS). You can change which API to use in the Settings menu of the menubar, which requires a restart. If you're having an issue with crashing, you can change the API in the spaghettify.cfg.json file by finding the line "Backend":{... and changing the id value to 3 and set the Name to OpenGL. DirectX 11 with id 2 is the default on Windows. Metal with id 4 is the default on macOS.
Modding
Custom assets are packed in .o2r or stored .zip files. To use custom assets, place them in the mods folder.
There is an official gamebanana page.
If you're interested in creating and/or packing your own custom asset .o2r files, check out the documentation page.
Note that .otr archives are not supported in SpaghettiKart!
Development
Building
If you want to manually compile SpaghettiKart, please consult the building instructions.
Playtesting (nightly)
If you want to playtest a continuous integration build, you can find them at the links below. Keep in mind that these are for playtesting only, and you will likely encounter bugs and possibly crashes.
- Windows 64 bit
- Windows 32 bit
- Linux 64 bit
- Linux 32 bit
- macOS-arm64
- macOS-intel
- Switch
Maintainers: MegaMech, Coco, Kirito

