Update 1/28/2013 there's a new link now to download the game with all the cards :)
This is how to get all the cards for yu-gi-oh forbidden memories. Sorry i forgot to do this on my first video.
instructions
1) Get the (yu gi oh ps1 all cards) folder and put it in the game folder.
2) Get the (SLUS01411) folder and put it in savedata folder.
if this dosent work for you. Then you need to install the SEplugin POPS loader for Custom Firmware (CFW) 5.00 M33 or GEN. This SEplugin enables you to play PSX (PS1). Watch this video of my friend "D3AtHrAiN333". On how to install.
http://www.youtube.com/watch?v=ADJUlqK_Eoo
Remember You need custom firmware to be able to play this game. Hope this helps. Rate, comment, & Subscribe! For any questions, comment or message me.
This is the Yu-gi-oh game
New link Mediafire
http://www.mediafire.com/?10bqnnuf8fsq11i
My friend has a video of yu-gi-oh too. Heres his youtube channel...
http://www.youtube.com/puertoel
Sorry for having my screen sideways