I played it some time, here is what you should change:

1. Make some bullets spawn randomly, not aiming at your position.

2. Add different types of bullets like explosion bullets, debuff bullets, no shield bullets...

3. Make shield smaller in higher difficulties.

Btw it was very enjoyable, I hit 17 000 score on hard first try

Gameplay is amazing and its actually very fun. I recommend getting an artist cause many people judge the came by its art. i am going to play trough it tommorow probably

I like the idea, the art feels weird as its all different pixel sizes and I think a parallax background would do well. Got 1st on your leaderboard - which is a great addition. I'd say it needs variety and consistent art. Well done.

I managed to get to third on the leader board :)

One thing I found hard was the mouse position relative to the ship. If I moved left and didn't move my mouse with it, it would rotate as the relative mouse position was changing. Being able to rebind this to left/right whilst using WASD to move would be nice.

Simple yet fun to play :) 

tbh looks like scratch but considering the Godot loading start im pretty sure it is Godot

Very nice game! 
I find the invincibility power-up a little pointless though because I think getting to it is probably harder than the 5 seconds after. Also, the bullets sometimes deflect off my shield and into myself, which might be a bug that is worth fixing (maybe once a bullet bounces off the shield, it simply cannot do damage). The scoreboard also didn't seem to add my score to it, but I'm sure that's because it needs to be manually updated.

Overall, a great game! It has some nice music too, 5/5!

Nice gameplay and great music. For advice I can recommend adding more tags(2d, action, singleplayer, indie, etc) and you could also for hard game mode make more intense music, than in usual difficulty.

Good game, i would like the shield moves independent of the player, like a stick. And there is a bug with the scores, every time i start a new game the scores starts from where i lost the last game, so i started a game with 5000 points. The idea of the shield broken after a few hits sounds nice too.

I loved having several game modes, I love the music and I think they did a good job, what I didn't like a little was the art of the game, but the rest is super good 😁

Cool game, I don't know if this would be in the main game mode, but maybe the shield can only take so many hits, and you have to go around and collect a repair item to heal your shield once in awhile. I haven't discovered any bugs. Anything else I could suggest is already in the Incoming Updates which is good to see.