McDohl's name has a bizarre glitch when transferring data from Suikoden to Suikoden II. In canon, the hero's name in the first game is Tir McDohl, however the game only transfers the capital letters of the name across, so naming him Tir will result in his name being TcDohl in Suikoden II. In order for his name to be McDohl in the second name, you would have to name him something with only a capital M in the first game. If you name him something in full capitals, it will all be transferred across, for example, naming him TIR will result in his name being TIRohl.

Ted, McDohl's best friend from Suikoden 1, has his profile picture hanging in McDohl's room in Gregminster.

Sheena's default equipment pays homage to his parents from Suikoden 1. His sword is called Kirinji like his father, Lepant, and he begins with an Earth Rune and permanently attached Star Earrings like his mother, Eileen.

If Jowy is hacked into the party during the game, neither the "King" version, or "Best Friend" version will appear in the HQ anywhere. They can both be removed and added to the party with unique (and different) dialogue, despite these never normally being accessible through traditional means. "Best Friend" Jowy can also be awarded the statue that appears at the top of the castle for obtaining the most kills, even though he is never a part of the party's team after the events that lead to the castle being accessible.

There are many unique dialogue choices for the end of the game after defeating the Beast Rune. Some of these require special conditions to be met, such as having only a single character with you.

Jowy and Nanami can also be hacked into the party using code, which will reveal Jowy having glitched text, but Nanami will have understandable dialogue.