Really nice game! I liked a lot the increasing difficoulty, the gameplay is fun, and the graphics and animations are really well done! One problem I had, tho, is it's not very clear when you can hit an enemy, and the slash's hitbox, making hitting enemies conststently very hard. Other than that, it just needs a bit of variety in the landscape going deeper, and that's all! A nicely done game, great job! :D