Special Christmas Features In Games?

An anonymous reader writes "Some online and offline videogames make special changes for the holiday season. There's the Planetside Christmas decorations, where Sony has embedded the holidays into their futuristic online war, and also a Christmas mutator for Unreal Tournament 2003. What other holiday changes are people seeing in their gaming today?" Phantasy Star Online has also instituted some neat changes for Xmas.

Nights and Heavy Gear II

[jvmatthe]

Nights for the Sega Saturn had a special Xmas version that used the internal clock in the Saturn to release special items during Christmas. Sadly, it appears that GameFAQs doesn't have any information about it specifically, but you can read the FAQ by STowle on this page for Nights [gamefaqs.com] which has a description in an appendix.

Finally, Heavy Gear II apparently has little red-and-white Santa hats on the Gears on Christmas day. I don't know for sure if this works in all versions, but I know it did in the Linux one.