Arguably the greatest PS1 game to ever release can be picked up for way less than normal in a deal that won't last much ...
In the first run of PS1 games, the boxes were long like Sega Saturn’s cases. They quickly switched to jewel cases identical to those used for music CDs, likely as a cost-saving measure.
It's as weird as it sounds, but it's a lot of fun, as long as you can get used to the unique two-stick control scheme. Any of the PS1's Final Fantasy games would be a worthy addition to the list ...