I Finish Bioshock

I finished Bioshock last night. It really is a great game although I'm going to have to agree with other reviews that the final Boss and ending where a bit of a let down. I had to go and find my ending (1 of 3) on youtube today and rewatch it as I honestly went "eh?" after seeing it last night. The second viewing was slightly better, but only slightly better, it was like they raced to finish it late on a Friday evening so they could all go to the pub. Theres talk of a sequel. I wonder what they'll do?