8 and 4 were very short. Only thing i didn't like about 15 was that the light puzzles ( but i liked the idea, should have been the keeper or Laura chasing you through) were easy and so was the last boss. 3 i like because i got a lot of parts for crossbow and goo from chainsaw man, and stealth killed every zombie (no wasted ammo). 6 (zombie horde) and 7 (the keeper) were intense due to the fact you pretty much have no time to think 7 scared the shit out of me both of those levels i liked. 14 was great because im a cheap bastard and farmed a ton (literely piles) of ammo (both shotgun and pistol) from the slugs that the octopus monster drops. I was pretty much satisfied with everything else, the only reason someone would like 8 is because they like stompin on babys.