Hint: Kain's Lance reference:
In Memoria on Disc 4, go past the save spot at the entrance and head for the door. Before you reach it, stick to the right against the wall. You will go in and find Kain's Lance. This Lance belongs to Kain from Final Fantasy 2.

A powerful weapon sealed in Memoria, owned by Cain/Kain, the Dragon Knight of Baron. It is the seconnd strongest weapon for Freya.

Hint: Water Shrine reference:
This is also known as the Tower of Waltz. It sank into the ocean long time ago when the evil forces destroyed the Water Crystal.

Hint: Holy Lance reference:
You can steal the Holy Lance from Ark in Oeilvert or simply buy it in Daguerreo. This was the ultimate weapon for Cain/Kain, in Final Fantasy 4. It was sealed in the underground of the Second Moon. It can be used by Freya.

Hint: Reis Wind reference:
This is the econd ability of Freya. Reis was the ancient Holy Dragon. This type of dragon can assume the shape of a human, like in Final Fantasy Tactics (human form but it is a dragon).

Hint: Parasite Eve gunsmiths reference:
When you go to the Synth Shop in Lindblum, there are two men there. One's name is Torres and the other is named Wayne. These two names are the names of the two gunsmiths in Parasite Eve.

Hint: Final Fantasy 3 King Edgar reference:
In the area on the World Map just outside Chocobo's Forest, go onto the menu. It will state that this area is called the "King Ed Plains".

Hint: Final Fantasy 3 music:
Buy Une's mirror and Doga artifact at the Treno Auction House. Go to the Black Mage Village. Enter the inn and talk to the Black Mage in front of the music box. You will hear a very old song until you stay in the village.

Hint: Final Fantasy 7 music:
After you crash the airship into the evil woods at the start of the game, go inside to hear a band play the music from Final Fantasy 7, during the parade for Rufus. This is the Active Time Event called "Orchestra in the Forest".

Wait about ten seconds after dying to hear music from Final Fantasy 7.