The supported ROMs are US 1.0 and US 1.1 Rev A versions. You can verify you have dumped a supported copy of the game by using the SHA-1 File Checksum Online at
https://www.romhacking.net/hash/.
The SHA-1 hash for a US 1.0 ROM is D8B1088520F7C5F81433292A9258C1184AFA1457.
The SHA-1 hash for a US 1.1 ROM is 09F0D105F476B00EFA5303A3EBC42E60A7753B7A.
Starship also supports voice language replacement use from both EU (Lylat) and JP (Japanese) when used in conjunction with an US ROM.
Note: JP and EU versions of the game are not supported for the base asset O2R creation, a US ROM must be used for it, and you can only use one voice language replacement at a time (Either EU or JP).