Most PSP homebrew is distributed as an EBOOT.PBP file rather than a standard ISO , which is typically reserved for commercial disc rips. Finding and Installing a "Port"
If you have a hacked PSP with WiFi, you could stream Undertale from your PC using a custom streaming client. It’s laggy, but it proves the concept. undertale psp iso hot download
However, the dedicated homebrew community has developed several "fan ports" and recreations that allow players to experience the Underground on their handheld. Official vs. Unofficial Availability Most PSP homebrew is distributed as an EBOOT
Why do users search for modern indie games on 15-year-old hardware? This behavior highlights key lifestyle trends in the gaming community: but it proves the concept. However
Dedicated fans have created "ports" by rebuilding the game using PSP-compatible engines.