Single player, by 
Second half of the winter pack, though not the better half. Let’s go level by level.
Cold as hell:
Well I’ve heard a lot of people saying it’s hard to make good eyecand for the inferno tileset. That means it’s not an easy tileset to use. I see you were trying to do something but the level still feels sort of empty. Some of the enemies were placed in a kind of glitchy way (skeletons). There were two parts where the paths split that was sort of good. Amount of secrets was moderate and the item placement was good. Default music. (Still better than choosing something that doesn’t fit).
Rating: 6.8
Spreading cold:
Easily the best of the 3 levels. Different starting positions with a kind of funny part for Spaz. Eyecandy is good (though the tileset isn’t really a winter tileset) like the diamondus levels you combine layer 5 and 6. Enemies are well placed as well as the items. You have to split paths quite a few times which adds to the replay value. Also I noticed that here there are far more places for only Spaz unlike other levels from you. There are a few tricky secrets which are a good idea. This is the only level with different music than the default and it’s quite nice.
Rating: 8.2
Without heating:
A really short level. It’s rather a boss level. Still you managed to squeeze some secrets in it. Not much to say here. Boss fight was really tough and long, anyway I wouldn’t have minded this to be a boss fight level only.
Rating: 6.2
21.2/3=7.06
Rating: 7.0
Download recommendation: Yes
Even though this isn’t the best it’s worth downloading because of the second level. Also fighting the boss is a tough challange which some players may enjoy.