Currently very broken on PC, between the pause button crashing the game to utterly terrible framerates and regular slowdown. I feel like it wasn't that bad when I started playing the game, but that was like a year ago, which itself speaks to how the game itself didn't really grab me. The level design feels sprawling, but never particularly rewarding or engaging to explore, as you're usually rewarded with only a few mediocre health pickups, or a power-up that you probably already have a copy of from earlier in the level.