Angle Zero

A night-time downhill drift game for the Sony PSP, written in Rust.

Install

Runs on any PSP, on official or custom firmware.

1. Download the latest AngleZero.<version>.zip from Releases.
2. Unzip it at the root of the memory stick.
3. Launch from Game → Memory Stick.

Cars are separate .azcar files in PSP/GAME/AngleZero/CARS/. Add or remove them freely; the title screen lists whatever is there.

Build

cargo psp --release   # target/mipsel-sony-psp/release/angle-zero.EBOOT.PBP
cargo test            # host-side test suite, no PSP or emulator needed
scripts/release.sh    # dist/AngleZero.<version>.zip, EBOOT encrypted for official firmware

The EBOOT that cargo psp writes is unencrypted, so it runs only on custom firmware or in PPSSPP. scripts/release.sh encrypts it with pspbuild, a workspace dependency that cargo fetches itself, so it also boots on official firmware.

See Building and running for toolchain setup and controls.

Documentation

Document	Contents
Design	What the game is and the constraints behind it
Building and running	Toolchain, build flags, emulator, controls, releases
Architecture	Crate layout and host-side testing
PSP hardware notes	Hardware and SDK pitfalls, performance
Diagnostics	On-device captures, headless screenshots, glitch hunting
Assets	XMB icon, background and music
Cars	The car asset pipeline, adding a car, licences

Credits

Car models are third-party work under Creative Commons licences; most are non-commercial. Each car's credit is embedded in its .azcar and shown on the title screen. Sources and licences are listed in Cars → Licences.