After a some time I decided to KISS (Keep it simple, stupid). And I have a question: do I need to change the boss' sprite?

The menu of the demo version (I don't want to make buttons because it is difficult and long to do).

Just made a new fireball for the first boss. I've never drawn fireballs before. Here is the evolution.

Level design problem Hey guys! I need your help. I made an enemy that moves only diagonally. The problem is that I don’t know how to use it in the level design (I found only 3). Maybe you will be able to find more.

The Last Enemy!!!

I made a new disappearing blocks. Now they look like a balloon that inflates and swells.

Time block. Disappears after 4 seconds.

I am just thinking about publishing a demo version of my game. What do you think?

After a long draw-redraw, draw-redraw I finished the art of the first stage.

Creating hard level is easy. The hard part is when you have to test it.