There are a number of missions to complete and the game will not allow you to free roam too much while on a mission but you can explore the vast and beautiful city of Glass between missions to acquire more hidden items and complete tasks for those of need for a runner. The controls are very similar to "Dying Light" and do take a bit of practice but become second nature when running, jumping, wall-running, using a zip line, sliding, etc. The fighting is limited to 2 variations of punches and kicks in combination with the wall jumping and running to enhance their effectiveness. The fighting component is the weakest part of the game but isn't too bad since running away is better than tangling with armed adversaries unless required to complete the mission. The combat, movements and gear can be upgraded as you progress throughout the game and are purchased after getting points for completing missions and locating hidden items. This game is an acquired taste but can be very addictive once you catch on to the controls and premise of the game. You can also compete with other runners online in different time trials. The city is huge and fairly active with planes, monorail trains and vehicles in the streets below. There are not that many citizens in the city which was intended so as not to get in the way of your running. The security force that is pursuing you is very aggressive and they are armed. This is one of the few games that does not have the player using weapons. The language in the game is mild compared to many games today. I summary, I find myself playing this game for a couple of hours at a time just to explore the city and take in the sights. Hopefully, there will be a sequel to this sleeper hit. Have Fun!