I made some progress in creating this game:
- fixed some bugs in level 1

- created level 2

- created level 3

- created intro
- created end animation
This game will contain only 3 levels, but I am also going to create an endless mode. Also, I didn't mention what tools am I using:
- Godot Engine
- LibreSprite
I'm using music and sound effects mostly from opengameart.org. The horrible graphics you can see in those gifs is made by me.