Final Fantasy I and II Changes and Additions-PlayStation

The PlayStation versions of the game were most similar to the WonderSwan Color remakes that were produced separately in 2000 and 2001, respectively. Other than minor changes to take advantage of Sony's superior hardware, such as a higher screen resolution which meant that the graphics in the PlayStation version were slightly more detailed, and the remixed soundtracks, the PlayStation versions were basically identical to the earlier WonderSwan versions. Both games have added CGI FMV cut scenes, and added content. It also includes art galleries of Yoshitaka Amano's illustrations.
As for the tomb at Elfheim (or Elf Land on the NES version), the tomb reads "Here lies Erdrick" on the American NES version of Final Fantasy I, a reference to the Dragon Warrior game. It reads "May Link rest in peace," on the American Final Fantasy Origins (reference to the hero of the Legend of Zelda series). It reads "May Erdrick rest in peace," on the PAL Final Fantasy Origins version. (Interestingly, the text referencing Link was only slightly changed in Final Fantasy I & II: Dawn Of Souls, even though that version was made for a Nintendo system. In the Dawn of Souls and PSP versions, it reads "Here lies Link.")
While the original version of Final Fantasy I has only one save slot and the WonderSwan Color version has only eight, the Final Fantasy Origins and PlayStation Portable versions have as many save slots as the player has available through PlayStation memory cards. The GBA version only has three save slots.
The Origins version has been released on the PSN Store in Japan.