Players who played the first `` Mass Effect '' game can import their data into the new game . `` Writing for 'ME2 ' was the hardest thing we 've ever done , '' project director says . Comment:
Players who played the first `` Mass Effect '' game can import their data into the new game . `` Writing for 'ME2 ' was the hardest thing we 've ever done , '' project director says . `` Mass Effect 2 '' has 15 % to 20 % more dialogue and 30 % more decision-making options .