List of PlayStation video games with unlockable content via other games memory card save game data

The following table contains known PS1 games that had unlockable (sometimes simply "faster," other times exclusive, etc.) content when the actively running game would detect save game data from another game residing on one of the memory cards. The table is both sortable and incomplete (please contribute).

This can also known as Old Save Bonus.

Title	Unlockable Content	via
Gran Turismo 2		Gran Turismo
Legend of Mana		Final Fantasy VIII
Legend of Mana		SaGa Frontier 2
Metal Gear Solid: Integral	Psycho Mantis scene: "You like Arcade games!"	Any two (Arcade games): Dance Dance Revolution Gradius Gaiden Jikkyou Oshaberi Parodius Susume Taisen Puzzle Dama Tokimeki Memorial Taisen Puzzle-Dama
Metal Gear Solid: Integral	Psycho Mantis scene: "…	Any three (Konami games) Dance Dance Revolution Detana Twinbee Yahoo Deluxe Pack Gradius Gaiden Jikkyou Oshaberi Parodius Lightning Legend: Daigo no Daibouken Mitsumete Knight Mitsumete Knight R: Daibouken Hen Policenauts Snatcher Susume Taisen Puzzle Dama Tokimeki Memorial: Forever with you Tokimeki Memorial Taisen Puzzle-Dama Tokimeki Memorial Taisen Tokkae Dama Tokimeki Memorial Private Collection Tokimeki Memorial Selection: Fujisaki Shiori Tokimeki Memorial Drama Series Vol. 1: Nijiiro no Seishun Tokimeki Memorial Drama Series Vol. 2: Irodori no Love Song Tokimeki no Houkago Twinbee Taisen Puzzle Dama
Suikoden II		Suikoden