Nintendo is famously aggressive about protecting its IP. While Sony doesn't care if you emulate PS1 games on PSP, Nintendo’s legal team targets ROM distribution sites.
Ultimately, playing Mario on a PSP is a brilliant party trick and a testament to the homebrew community’s genius—but it is a journey of configuration, not a simple "download and drag" ISO file. super mario bros psp iso download
Stay safe, respect developer rights, and keep gaming. Nintendo is famously aggressive about protecting its IP