Nice game, pretty original... I love gradually bombarding things to a pulp.
One tiny point, ships stop firing canons when they surrender, but some still launch those gunpowder keg floats... It's not really a problem, just doesn't quite fit :p anyway, good job!
Nice graphics, but that's about it I feel. This has been done before hundreds of times...
I do like xbox-controller support, though i can't test it... Just think it's a nice idea.
Great game, love the space stage idea! Kinda short though, and i find the ship bit flimsy even with max upgrades, couldn't get the hang of dodging bullets...
Oh, for the 2x round planet medal, you need to do it in one launch?