This hack back-ports scoring modes and game systems from modern versions of Radiant Silvergun into the Saturn and ST-V versions of the game. Namely, this adds “Ikaruga Mode” from the Xbox 360 version, as well as the 2-button “overseas” mode exclusive to the ST-V version. In addition to these ported modes, there’s a new Special scoring mode which combines the original scoring system and the Ikaruga scoring systems in a different manner.
The ST-V version already has the overseas mode, so this patch only adds the two new scoring modes. However, this patch allows picking the overseas mode per-game, rather than based on the BIOS region. This also removes less good overseas changes, such as the removal of named boss intros.
