Second Stage Boot (Sega Mega CD) Updated Mar 15, 2026 · 2 min read · 0 viewing Previous First Stage Boot (Mega CD) First stage boot is getting to the BIOS screen without any text displaying. This means the BIOS has ... Next Third Stage Boot (Mega CD) Once you get to Second Stage Boot (the Mega CD BIOS screen to fully load with logo, disc tray opens ...