Thank you for playing the game and for the honest feedback!
I also agree to all your comments!
I thought UI work would be easy but I was so wrong! Thinking I could go through the menu fast, I left it for the last few days... I started thinking how it was going to be implemented and I was stuck! What the correct design would be? How to convey the upgrades? How to structure the code? The fruits of my labor? This! Let's just say that I have more respect for UI designers/artists after this game!
About the animation, you are also correct but because the time was ticking I had to leave it as is. Also my animating skills are a bit low and with the 2 color palette I was afraid of any background movement.
Have a nice day!