Before searching, you must understand what you are looking for:

If you can’t find a stable copy of the exclusive PSP ISO, or you find the compression stutters too annoying, consider these modern alternatives:

(like multi-language files) to achieve the smallest size possible.

First, the factual anchor: The PSP’s flagship snowboarding title was SSX On Tour (2005), which carried over the “Tricky” meter but featured a darker, skater-punk aesthetic. Therefore, the very idea of an “SSX Tricky PSP ISO” is a fan-constructed chimera—almost certainly a modified version of the PlayStation 2 or original Xbox ISO, repackaged for the PSP’s custom firmware via emulation (like the now-defunct DaedalusX64 for N64, or more likely, a poorly converted PS1 executable). The “exclusive” in the search query is a misnomer; what users seek is an unauthorized port .

If you are looking for information or a download for a "highly compressed" SSX game on the PSP, you are likely finding SSX On Tour