Pokemon Emerald Compiled to WebAssembly Hits 100k FPS in Browser

A developer has ported Pokemon Emerald to WebAssembly, allowing the classic Game Boy Advance title to run directly in a browser without an emulator wrapper. The project compiles the game’s decompiled source to Wasm, achieving roughly 100,000 frames per second on modern hardware — orders of magnitude beyond the GBA’s original 60 FPS target.

The achievement highlights how far the GBA decompilation scene has progressed: with a complete C source reconstruction, the game becomes portable to any target with a working toolchain. Wasm in particular benefits from JIT-tier performance in browsers while sidestepping the platform-specific quirks of native emulation.

Beyond the novelty, the port is a useful demonstration of WebAssembly’s maturity for shipping non-trivial interactive workloads, and of the long tail of reverse-engineering work that makes such ports possible in the first place.