I did the good ending, going to mars thing and got the achievement. After that it said I could do the other ending. I did that but no achievement. Did it just not give it to me or do I have to start all over and do it again?
You should always make multiple save files in games like this (where there are choices and achievements tied to them) that way if something goes wrong, you can reload that save, and do the one you need to do. --- "I don't want to say 'I Told You So' ...so, Welcome to Miami!" GT: rodneythesavior