Art and animations are 10/10. I love the intro and story too. The only problem I had with it is how sometimes the tall human like enemies with shields on level 2 just stop moving sometimes. I also was doing the world 2 level 1, 1 star and I was on the 6th wave but the only enemy remaining was just not on the map, so I spent some time looking for them but failed.
Thank you for the kind words! I'm sorry for the caused inconvenience with the 'ghost' enemy...I'm still working over those kind of bugs. Enemies tend to fall of the ground sometimes and I'm working to sort this out now. It's unacceptable and it takes out all the fun when happens. Thank you for reporting this! One more question - on scale 0 to 10 how difficult do you find the game (where 0 is too easy and 10 is unplayable hard)?