Finished beating the tentacle boss...still hard, but I did much better this time around than the other day. I had a clear mind and better understanding of how to get it done.
I continued to beat most of the game. I got to the fake credits, but since the game doesn't actually end there I'm at some point after that. I REALLY wanted to finish it, but it was getting too late and I needed sleep. Tonight though I'll definitely finish it off. Might even go back and try to get some of the missed achievements because almost all reasonable and fun to get (thus why you get most of them via just playing the game... if you're aware of what they are anyway).
I've really enjoyed the majority of this game. I'd probably give it a 7 out of 10.