Mass Effect 2 has some great diverse interactions depending on choices and who you bring. For example, you can bring Legion to Tali’s people if you’re willing to make some sacrifices. Legion is the final character you recruit and once you grab the IFF a timer starts. After a few missions Shepard and his allies will take a shuttle to the next mission, leaving the Normandy but finding out the IFF is transmitting a signal. The Collector’s board the ship and take the entire crew, if Shepard doesn’t leave immediately his crew will suffer. This means getting Legion and taking on additional tasks is risky if you wish to save everyone. Once Legion is recruited you can bring him to Tali’s trial but the Quarians will immediately tell you Legion isn’t allowed. If you have enough Paragon or Renegade points you can convince them otherwise. Allowing Legion on board and opening up unique dialogue.