you include FF9's ice cave, but no Esto Gaza?!?
https://www.youtube.com/watch?v=9V4DvEbnoWc if any single piece of video game music ever made me want to curl up with some hot cocoa, this is probably it. it's very somber, and gives me the blues a bit, but I love it all the same.
https://www.youtube.com/watch?v=v4nP1Ggrm4Q Diamond Dust zone from the Saturn and PC versions of of Sonic 3D blast go all out with the calming synth, and even roll with Jingle Bell percussion!
https://www.youtube.com/watch?v=U72RFDp4AyA The N64 Bomberman games all have really good soundtracks, and although there are pieces I like more on the first Bomberman 64's soundtrack, This is still a fun and bouncy little ditty of a tune!
https://www.youtube.com/watch?v=LzpcyZvx-2Ahttps://www.youtube.com/watch?v=YWcfILNz_0shttps://www.youtube.com/watch?v=3O9kzGRddY0 All three of these are EXCELENT icy themes brought to you buy the folks at inti-creates! Although High Speed Lift is my favorite of these three, all of them are excelent for different reasons, and the songs that stick out to me the most from the zero games outside of some of the mroe popular intro stage/special boss themes, etc.
https://www.youtube.com/watch?v=rAWQ-Aw81uk Speaking of Frost Man, here's the version of the stage theme from Frost Man's stage in the early prototype builds of Mega Man 8 that were unearthed. Double bonus for
https://www.youtube.com/watch?v=X3KRQkMC9zs ! <3
https://www.youtube.com/watch?v=GErbsnzJ1Mo Speaking of 8-bit stuff, while I don't like 1,001 spikes for being that sort of I Wanna Be the Guy style platformer, I do love the compositions of RushJet1 and how he layers sound to get a fullness out of the Konami VRC6 chip. Heck, I'd highly suggest going to
http://rushjet1.bandcamp.com and getting his music ASAP! especially his Mega Man Remix albums.... mmmmmm...
https://www.youtube.com/watch?v=bFIn8fjnfd0 The music from the werehog end of Sonic Unleashed is all actually really awesome, ESPECIALLY the night time theme for Cool Edge! It has that tranquil feel with a drum beat to still drive you forward into the stupid battle theme whenever enemies show up!
there's probably some other stuff I'm forgetting, but I hope you all enjoy!
EDIT:
https://www.youtube.com/watch?v=AUCE8WK-TlI - I suppose there's this guy from the fun Mega Man 6 hack demo called Rockman 6 Innocent. apparently the game it's from it's a forest theme for a Hentai game, but I have trouble not associating this with a perilous and slippery place... which I imagine could be applied to certain places when you think of hentai, but we're not going there! >_>;;
https://www.youtube.com/watch?v=AAH7-oatv2E For being a game primarily of Remixes, I really love the Kirby's Canvas Curse OST. Rainbow Resort was already an icy aurora filled level, and this remix used for the stage Frozen Fantasy sells that even more. Speaking of which...
https://www.youtube.com/watch?v=lzROIaEItjQ There's a remix of the Shiver Star and Factory investigation stage themes from Kirby 64 in Canvas Curse, but I'll just use them here. if there's any single thing I like from Kirby 64, it's the soundtrack, which is just... awesome. <3 Miracle Matter is still one of my favorite boss themes of all time.
https://www.youtube.com/watch?v=H2OWC5Hosv8https://www.youtube.com/watch?v=yStMqWTu-lwhttps://www.youtube.com/watch?v=iPNgC3gBaq4 I brought this up when RFN was looking for new bumper music, but I feel this bears repeating; Michael Jackson ain't the only one who worked with Sega on the Sonic 3 OST and repurposed some of their music. >_>;;
https://www.youtube.com/watch?v=20UxjntIpmUhttps://www.youtube.com/watch?v=LCvYlD-S4DQ These are probably my two favorite wintery songs that have ever been in Rare games. nice and bouncey!
https://www.youtube.com/watch?v=E2A4iGLz-Lc and finally, to properly bookend my post here and bring the high octane energy down a notch... Icicle Inn from FF7 brings it back down to a more chill mood... that hot cocoa mood.
THere's others I could post here too, like the ice maze from Brave Fencer Musashi, anything from the Jazz Jackrabbit Holiday hare shareware episodes, some of the stuff used for icy areas in castlevania games, Sherbert Land/Frappe snowland from Mario Kart 64, the snowy level theme from Yoshi's story, and... I could go on and on and on, but I have to cut myself off. wintery level themes have such variety to them and I love them all...!