Looking at the grimacesbirthday.com, I'm trying to figure out someone extracted a GameBoy ROM from that page. It looks like everything is implemented inside a

Looking at the grimacesbirthday.com, I'm trying to figure out someone extracted a GameBoy ROM from that page. It looks like everything is implemented inside a WASM blob, containing what looks like binjgb (based on the strings). I'm assuming the game itself is also included in the data section at the end of the WASM blob. Are there any good tools for reverse engineering that? (Or am I missing a more obvious way of extracting the ROM?)