This is "baby one more time" variation of Space Invaders and Galaxian.
Here we have acid colors and slow moving (not mind) background with stars.

This videogame has a story.
Story in game represents as a screens with text between levels.

There are many different eyes-form monsters.
They are different by colors and size.
And it is 17 different species by unique form.
So, lots of them.
In someway, they are creepy, freaky, and someway funny.

Idea about this gamer comes from different situations.
It is music influence like Black Sabbath, and a little of Deep Purple.
It is wish to draw simple sprites and give them some background.
It is experiment with theme of Space Invaders.
It is idea to try to do mix of fantasy and horror.

Here we have orientation about retro theme.
Something like this possible can exist on 80s computers like Zx Spectrum or MSX.
Possible, also something is taken from retro black and white horror and scifi movies.
All of this kind of stuff is experimental today.

By gameplay all is crystal clear here.
You play as a magician, which is flying through dimension.
He can move left and right and shoot.

At the top of the screen you see some parameters.
It is level. For better interest here we have regions.
Score. So you can play for scores also.

Enemies with different sizes. They move according some schemes.
For example, they can do no move at all, move left right, and fly across the screen.
And some more.

From unusual there are effects.
For example, there is effect of enemies.
This means they looks like enemies.
And really they are only visual effect.
They act strong, they big and getting bigger, for example.
But it is only effect and they can do no harm.

And also there are some levels with screen, that partially filled with color.
And screen can be flashing with this color.
And part of screen filled with color, and
you cannot see there. This things better to see by yourself.
And this is some comment for understanding.
So be ready for some visual effects.

Also i need to say that there are some brick bloc that fly across the screen.
You need to avoid them.
If you run into them you will lost 1 live.
And by tradition you have only 3 lives.

There are big sized bosses. And lets talk about games difficulty.
Game is not difficult. But has some moments.
It has 33 levels.
Gameplay is based on repeating some gameplay mechanics.