Maybe they're a fan of Undertale and want to play it on older hardware. I can suggest using an emulator on a PC if they're using the right game system. For example, Undertale is available on the Nintendo Switch, PlayStation, and other platforms, but again, that's different from the PSP.
Also, the user might not fully understand the difference between an ISO file and the actual game. An ISO is a disk image, often used for emulators. Since Undertale isn't on the PSP, an ISO for it would be a pirated copy. I need to explain that without mentioning specific websites that distribute pirated content, as that's against policies. undertale psp iso download top
I should structure the response to clarify the confusion, mention the lack of an official PSP port, warn about the legal issues, and suggest where they can legally obtain the game. Also, perhaps touch on the community around Undertale and how to engage in the right way without breaking any rules. Maybe they're a fan of Undertale and want