Lag spikes spawn groups of enemies that can at times end your game suddenly and unfairly, while the low-visibility wolves are at times undetectable now that they don't have an audio cue. I'm personally not a fan of the lack of a 'bossless' mode with how long SS2 has been around. Simply add an option to play without the 'boss' and I might play this more than 1-2 times a month.