I like the amount of features that it has and all the different ways you can upgrade your character. The game's difficulty curve is a bit too easy at the start. For the first 5 levels it felt that I was just doing the same thing over and over again. Even the boss at level 5 is too easy. Also, the transitions between levels, and the time it takes for the enemies to spawn should both be faster to minimize the time the player spends waiting around.