Yeah, you were right. Got back into the game again and decided to actually put in a bit of effort to edit the original song and I managed to mimic the in game hypno version decently.
Excellent. Yeah, if you REALLY wanted the exact version, you could look into how to do a software loopback for your main audio and just record it while the game is playing, there are no other effects that get in the way as long as you don't do anything. But I think just having the game play a track degrades it slightly, so eh. But yes, doing say a slowdown (without pitch correction) in Audacity or the like should get pretty close to the dame thing.