The game is pretty good, it's quite enjoyable. Difficulty is.. eh I don't know what to comment, though on Normal the game just felt pretty easy say for a few parts in 1.5 . Music's pretty good, as always from Cheshyre. The gunplay is alright, though it doesn't have too much depth. The optimization is kinda bad, I don't know if the devs are at fault or if it's Ruffle or Adobe who's responsible for not being able to make the game run at a consistent pace. Story's alright, not the best but it's there. Won't spoil anything from it so go figure it out yourself. I've barely touched on Arena so I can't really comment but I will say that it gets repetitive being in the same location over and over again. For it's time, Project Nexus still was quite good even 10 years after it came out.