The original intro for Serpent Isle weighted about 8 Mbs, which while laughable by today's standards was a hell of a lot of space to put into floppy disks. Thus, the producers replaced the original intro (which featured more close shots of the avatar's ship as it made it's way through the waters as well as showing the serpent pillars rising up from the sea) with an animation composed mostly of long, static shots in order to preserve space.
Years after it's release, artist and producer Denis Loubet has recompiled the original intro and now showcases it on his site (check out Links/Searches).
Run install.exe, the setup program that is installed in the game's directory and select NO SOUND CARD.
When back at the DOS prompt type "intro hisss jive." The entire game's introduction will now be in jive-talk with funny lines, including one with the Guardian saying that his face is "most muppet-like."
Find the bridge that is east of the Spinebreaker Mountains magic carpet chamber, and in the vicinity you will see a plaque.
The only way to access it to see what it reads is to activate the game's cheat mode and use the hack mover function to remove sections of the bridge.
When you double click to read the message you will find it says "Turn off the Hack Mover, you cheater!"
Go to the coordinates 77S 28W in the forested area southwest of the city of Fawn.
There you will find a small house barring your entry with a locked door.
If use the cheat mode in the game to rid yourself of the door, you will arrive at a place that is called the "House of Wares".
Inside there will be a pirate with the equivalent of a computer and its peripherals (the monitor is called a "magic cube" and the keyboard is called a "rune board").
If you look at the computer a message will scroll across the screen about software pirating an afterwards one which says "Ultima VIII: Pagan... Coming Soon."
In the Lost City, you meet a gargoyle who tells you: "To be known as Zhelkas. To mean 'Iron 'Helm'". Zhelkas' parents must have been of Slavic origin - Zhelelznaya kaska is indeed "Iron Helm"... in Russian.
"Serpent Isle" has a very funny copy protection. If you give wrong answers to Thoxa and to Fedabiblio, all the characters in the game will talk nonsense every time you speak to them. You'll still be able to wander around the game world, but all the conversation will be amusingly absurd. Occasionally, the characters will also shout "Oink!" when you are not talking to them.
This is by far the sexiest Ultima game - it contains several sex scenes featuring - yes, you heard right - full nudity! Of course, the character sprites are so small that you can't see much, but nevertheless the scene with the sorceress Frigidazzi is quite... ahem... impressive. What's more, you'll have this scene even if you are playing a female Avatar (*gasp!*)!
Despite the loss of the source code, some dedicated fans of Ultima VII and VII Part Two are in the process of reverse-engineering the games under the GPL license! See Links/Searches for more details.
Origin neglected to preserve the source code from both Serpent Isle and Silver Seed, and it is now lost, meaning the game can't be modified for re-release on future PC platforms.