Test EasyRPG with a small selection of RPG Maker 2000/2003 projects that use different events, audio, and save files. Play through known difficult scenes and compare behavior with the original runtime where possible. Check controller input and the platforms on which you intend to distribute or preserve the games.
Compatibility can vary by project. Keep original assets and document any unsupported behavior rather than assuming one successful title proves the whole library. A preservation tool is valuable when users can reliably play and resume the specific games that matter.
Akousa