#1 How does the game feel? Do you like the controls and general movement of the game?
A: The game felt a little weird at first and the shooting was pretty hard to utilize to it's full potential when you haven't got the hang of the controls yet. Other than the shooting the movement was pretty decent once you get used to it.
#2 How is the difficulty? Easy/hard? Does it get too hard too fast, never get hard, smooth difficulty curve?
A: Didn't have enough time to play yet to say this, as I just had about 20 minutes before I had to leave to play it and give a quick first-impression before I head off.
#3 Most importantly, is the game fun? If so, what appeals to you the most?
A: The game was extremely fun and I enjoy the art style of the game

The GUI needs work and you might want to make the black box around the level either outside of the games view or transparent if you want to leave it there, as it blocked vision.
Another thing you should explain earlier is that to open a chest, you need to find the key. I managed to miss the key the first time flying because of the black box around the level, found a chest, and was wondering why I couldn't open it.
Also a little bug:
In the tutorial where you learn that spikes hurt you, if you drop down from the edge of the wall you can walk across the spikes(the mechanic you learn later in the tutorial) when you should die from the first impact on the spike. You shouldn't be able to drop down on a spike and not die just because it's next to a wall. Or is this an intended mechanic?
Looking forward to checking it out more, but I hope this is ok for now
