Love that Metal Gear Solid reference! 😁 MGS was an inspiration for my game too, but I didn't have time to implement game over messages.
I love the concept and graphics, it's very easy at first but when those destroyers start respawning and the planets get further apart, it gets really interesting as you have to balance between protecting your ship and searching for planets at the same time.
You can get lost easily if you stray too far from the path, but besides that, I love it. Great job!