GCC is the lifeblood which powers continued development for many legacy and niche processors, such as the Hitachi SH4, found in the Sega Dreamcast. See how far a group of retro game developers, reverse engineers, and language enthusiasts are able to push the console, armed with the latest version of the GNU Toolchain, taking a deep-dive through community-driven ports to the platform, such as Super Mario 64, Sonic Mania, Doom 64, and Grand Theft Auto 3.