- you can swim
- purchase new hacks with skill points
- completing main missions and side content helps you unlock faster
- 'nice twists' with the map on the Wii U GamePad
- customize Aiden's clothing
- as long as no one's watching, you can do bad stuff and get away with it
- your standing in news reports will be reflected by what people see you do
- cops will either try to arrest you or open fire depending on what you're doing
- no weapon/car customization, but a lot of options to choose from
- you don't have to recharge your phone in-game