I've recently completed Mass Effect for the first time on normal mode. I played a male sentinel with heavy paragon leanings. I completed enough side quests to receive the Completionist achievement and to climb to level 50. Out of curiosity - for those of you who have played the game more diligently than I - does the game have much replayability? Does going "renegade" and switching genders, or some such thing, lead to enough substantial gaming differences to make the game sufficiently entertaining the second time around? I welcome any thoughts.