There's a video on YouTube that link to a Flatpak and a standalone application that allegedly can run PS4's Megaman Legacy on Linux distributions.
I have some doubts it's a full PS4 emulator, but I can confirm that it runs, or at least it requires, the "NES emulator" that's inside the PS4 package.
I've done some brief digging on that title (https://www.reddit.com/r/Megaman/comments/3igzxk/mega_man_legacy_collection_is_a_fancy_emulator)...
Someone created an application that can run PS4's Megaman Legacy on PC
I have some doubts it's a full PS4 emulator, but I can confirm that it runs, or at least it requires, the "NES emulator" that's inside the PS4 package.
I've done some brief digging on that title (https://www.reddit.com/r/Megaman/comments/3igzxk/mega_man_legacy_collection_is_a_fancy_emulator)...
Someone created an application that can run PS4's Megaman Legacy on PC