I really love the game 

And the fact that it's your first game is impressive

The idea of the game is really good

Here are my suggestions since it's your first game :

Don't use the default font for the game 

There are some fonts available on google font

Maybe you can give them an outline

You can put a description for the upgrades so the Player knows what it does

Overall, really impressive

I also liked the UI of the main menu , it's really well done .

I didn't have enough time to publish my gsme

So congrats on publishing yours

Pretty good game but i have a few suggestions:

-Ability to continue shooting by holding down the mouse button rather than continuously clicking it would help make the game feel better

-The later waves have so many enemies that by the 11th wave the game just crashed. I suspect you are not using object pooling to spawn in enemies. I suggest you look up object pooling since it will help performance immensely.

-To avoid having to spawn in so many enemies in the first place, try making more variety of enemies that have higher health which spawn in later waves.

-Some kind of text that conveys what each upgrade does. Since all the waves come in continuously you don't have time to parse in what the icons might refer to.

-A more indepth explanation of the hope mechanic in the game, or atleast in the game's description.

Hope you the best of luck.

اللعبة جميلة والله , ممكن تجرب لعبتي وتقيمها هذا يشرفني

الفكرة حلوة ، لكن أظن أن الوقت لم يسعفك لتطبيقها بالشكل الذي كنت تتمناه ، اللعبة صعبة وتحتاج نوعا ما feedback اكثر ليشعر اللاعب بانه يخسر نقاط عند ما يصطدم الأشرار بالشجرة

موسيقى جميلة و ومؤدي صوت جيد، لعبة ممتعة