This game is super polished with SFX and particle system and level design. I really loved your work. My favorite part was using bomb that was impressive. Good job :)

As someone, who made around 4 Space Invaders parodies during my studies in college, i really appreciate this game. Only problem i see here, is that difficulty rising a little slow.
Btw, check out our shooter game, it's not Space Invaders, but still fun i think.

Rated! Realy nice game! Chceck our game too!

The game was to easy for me, but my sister enjoys it. But since this game has highscore it should be easier to die (for example adding more enemies after next level). I don't know how this happened, but when I tried to shoot some enemies even if I hit them I didn't destroy them and if I shot somewhere else it destroys that enemy (maybe colliders and sprites weren't at the same position for those enemies, but it's just my quess).

So I started with things I didn't much like about this game, so now is time to tell you what I liked. Movement and shooting was fast. There were nice effects when an enemy was destroyed. I also liked the upgrade system, as there were some kind of progression in this game.

Good job.