I liked the game. The gravity makes for some intersting ways to attack and not all enemies can be easily killed by just spamming them with alien-spawn. The game should start fully zoomed out imo. I didn't notice you can zoom out at first. Also the enemy that destroys your black hole felt a little unfair when you don't always see it or know that its there. Another problem I could see is that it isnt clear when you've healed from catching enemies in your black hole.
Otherwise the game is good and I can see the potential in it.