The Rocket Launcher is unlocked by beating the main game with an S Rank which is done by finishing it in less than three and a half hours. It will be added to Rebecca’s inventory when a new game is started. (Wiki).
The Rocket Launcher is unlocked by beating the main game with an S Rank which is done by finishing it in less than three and a half hours. It will be added to Rebecca’s inventory when a new game is started. (Wiki).