- Polished Port: Hayarigami Revenge has included the option for the players to skip text that they've seen in a playthrough. You can even do this with text that you don't want to read through. In addition, it also allows you to check on the choices that you've used, but did not lead you to a good ending. This feature was implemented in the various releases over time.
- Portable has six Drama CD tracks included, as well as the ability to use the L and R shoulder buttons of the PSP as shortcut buttons. The game's trial version can be sent to other players via the Ad Hoc function.
- DS has the path flowchart system, which was adopted from Hayarigami 2, in order to help players check the paths they've used and not used yet. Like Revenge, this has also been implemented in sequels.
YMMV / Hayarigami