Thunder Force IV (prototype)

• rom : yes (proto)
• status : prototype
• code : thunderforceivproto
• Date(s) : 18-unreleased
• Tag(s) : vghf
• Type(s) : unreleased
• By(s) : Technosoft

Opening the options menu (holding Start + A, B, or C) at the Sega logo screen instead of during boot will make two options that were dummied out in the final game appearHolding Start + Up on boot will warp to a Time Attack Mode at Daser. Similarly, holding Start + Down will warp to a Time Attack Mode at Strite. These strings appear in the localizations, but are seemingly unusedOther differences unknown

Data retrieved from hiddenpalace.org

• ↪ https://hiddenpalace.org/Thunder_Force_IV_(Jun_15,_1992_prototype)

Screenshots