My game is already received near 30 rates. It's my first LD entry and first game ever, so I very glad to see that people like this game and write so many reviews for that. When I publish the game I think that I can't find audience and won't get more than 20 rates, but you are great, thank you! :) If you don't play my game, I think it will be not so interesting to read this post. So, welcome here ^^
https://ldjam.com/events/ludum-dare/40/space-crash

After reading the comments and thinking about the game I can show you some notes about What I want to change/fix in the game?:
- Graphic
Yeah, this is the main problem that I have as I think. I just didn't had a time for sit and draw something good (not sure that I can do this). What I want to change here:
* Style
I want to create sea-space style in game, so I try to do for player's ship a scat-fish skin and for enemies add piranha style. In total, I got here... Maybe I could to change style in minimalism style and just stay with simple shapes, but concentrate on effects and visualization. * Player * Enemy * Static blocks
With block elements in game I had to change skin not only a style. The main reason is players can't understand that the blocks is a bad thing and just die because they don't know about that. I want to draw to this blocks maybe tusks or something like that to show people that it is a bad element in game. * Background
Not so bad, but I wanted to add some star effects depends on particle system, alas

- Gameplay

I very love my mechanic, but I have some problems too:
* Escape from camera problem
It's not so problem, but some badly for players. Problem in checking position of player in camera. In my game if player leave top or bottom of camera he is die. But I don't discover that and player is die when he is leave just a middle of hero skin. Not nice for players, I think... * Death perfomance
I think I had to add death animation that would be very informative for player and add some epic in game

And here you can see what I want to add in game, but I change my mind or just didn't have time for that:
* Vary gameplay
I want to surprise players when they will be play and add something different in game.
- I want to add the big boss that will fly from top to bottom of level and destroy all that exist on level. But it was very expensive for me and I don't have so much time for that.
- Add combo for kills. But I don't have a time for realize graphic visualization for that. And also I solve that it's not necessary for game - I want to add health point and buffs for player. This is make a game quite easily. But because the same reasons we done THE HARDCORE GAME! * Audio
Also I want to add a few sounds in game. I want to add souns for game menu buttons, for death and etc * Game elements
Here I want to add something like highscore table for players and settings menu (for changing volume and something else), but I think it was not so necessary for game

It is all notes that I have, but maybe I forgot something.

Finally, I think I have not so much problems in the game and their mostly consist in graphic component. Otherwise, I had ablsolytely big experiance from this two days. Next time I will up my skills and create more perfect game! :)
Thank you for reading this!