This enables FASTROM on Rock N' Roll Racing by setting bit $420D to 1.

The game actually originally set the bit to 1, and then right away set it back to 0, disabling the fastrom.

Thanks to DJ_Draco for the .BSV gameplay videos

Disassembled with Diztinguish, reassembled with ASAR.

-kandowontu
twitter.com/kandowontu
patreon.com/kandowontu
discord.gg/U4CtzqDGa5