I'd love to see more from this! I love the aesthetic.  I think allowing the player to move in an orbit around the planet would be a bit more in-theme, but the controls were tight, even if before upgrades the ship feels quite sluggish.

The mechanics you choose and how you implemented them are excellent. Very well done! The aesthetics, music, and sound were great as well.

Major skill issue game for me, can't even aim to save earth (usually its just a barn). Good graphical style across the board and a good sense of progression with the upgrades as long as you can actually hitting (unlike me).

loved it! both main and second mechanic complements pretty well 
well executed 
sorry humans i let earth exploded (im bad at aiming)

This is great! Well done!