More of an expansion to Second Son than a separate game. I finished the story and the open world activities in five hours. There's a battle arena too but didn't delve into that.

I enjoyed racing after and leaping for upgrade 'lumens' in hard to reach spots over a lot of the filler in Second Son. The movement is so fun in these games it's nice to have more challenges. I also didn't miss the morality system. Fetch is a more interesting and likeable character than Delsin, but the story itself is so small and filled with busywork that it only really gets good in the third act.

I think both games work well together, Second Son the more complete package, First Light a focused side story. I enjoyed them both but don't think either of them reach their full potential.