I made W4ME Station, a runtime that brings WASM-4 games to old Java ME phones.
WASM-4 is a tiny fantasy console for small WebAssembly games. Java ME is the platform used by many feature phones from the 2000s.
The app runs standard WASM-4 cartridges on CLDC 1.1 and MIDP 2.0 devices. Testing on real phones and emulators is welcome.
https://github.com/mulfyx/w4me-station