I finally figured out where obviously incorrect SSX cheat code listings on sites like GameFAQs (Running Man is from OG, Fuji Board is obviously fake) came from - Official Prima cheat code
SSX Tricky for PlayStation 2 - Cheats, Codes, Guide, Walkthrough, Tips & Tricks
SSX Tricky for PlayStation 2 - Cheats, Codes, Guide, Walkthrough, Tips & Tricks
SSX Tricky could soon be remastered - 19 years after snowboarding game was first released - Mirror Online
Sports Video Games SSX Tricky | eBay
Cheat Menu | PDF | Play Station | Video Game Development
XBox - SSX Tricky | Ssx tricky, Video game covers, Video games artwork