However, for those looking to download a standalone ISO file of the original Super Mario Bros. specifically ported to the PSP, the reality is a bit more complex than a simple download button. Here is what you need to know before you search.
The nostalgia of Super Mario Bros. on the PSP! While it's not possible to directly download a PSP ISO of Super Mario Bros. (as it's an NES game and not a PSP exclusive), I can guide you through some useful information. super mario bros psp iso download