Solid gameplay. An arcade game of sorts as opposed to a longer fleshed out experience. Each run of the game you are looking to get farther and father. Each time I played I learned something new as I experimented with the skills an some newer enemies here and there, but most combat is pretty much the same thing repeated but getting tougher and tougher to keep up with. Similar to how zombie games send hoards in greater quantities instead of quality, but occasionally you will meet a unique one or two. Solid gameplay, that is simple, easy to get into and will make you want to get to the end. Honestly not sure there is one. Never got that far before I felt satisfied myself.