I think it's the most fun space combat game I've seen on this jam ! I have seen a lot of similar concepts, but I think this one works particularly well, with the active pause system and the ability to rebuild your ship as you want. I think it would need enemies a bit bigger, to force the player to focus weak points instead of just spamming the core, and make full use of the cool mechanics.
Graphics are pretty functionnal, Maybe the ship base could stand out a bit more, to show better where to shoot, for many enemies I destroyed what I thought was the core, only to discover that the core was actually right next to it. But that's a really minor complaint.