Yeah got two gpi cases here.
1 fully working, and another in the box with a spare pi zero just waiting for me to get around to setting it up. Gbp 80.00 for the fully working one but did redo the software. Then saw a brand new one on ebay from China for gbp 25.00.
I used to play the acorn archemedes demo version of this for hours. Could never afford the full version.
By time I had a full time job the computer was dead.
The ps1 version was terrible, wish I never brought it.