This was so much fun! I think the leveling up really fits the theme well as it was described in the video about improving. I really liked also how the enemies get stronger and I think the difficulty scaled really well. I died a couple of times in the middle when the yellow ones were swarming me and then I discovered a strategy where I would wall climb to create distance and then fire down at them. I also found the advice given by the helpers to be very useful and fun (*burp*). I think the levels were designed well too, they got big towards the end and I got lost for a bit but I was always able to find my way by seeing where I did not pick up hearts or checkpoints. It also looked really good and had good graphics. At the end I thought I would have to fight a boss but it was the ship :)