to beat the last level, put all your weapons on one side of your ship, and move all the way to the other side so only your weapons show on the screen. Less enemies will attack you
most objects you can hit should be destructible. Its fine most of the time, but it gets annoying when you're stuck on a blimp, or on the speed gates. Why not make it so you can't hit the speed gates.
You should do away with the souls and make the upgrades cost money. The souls are painfully slow to gather, and you get no bonus for higher level creatures.
The Grammer is fairly poor, and its too easy to make money quickly. You can't lost. Also, its really annoying to keep clicking on items you want to buy, you should figure out how to increase the amount before buying. Finally, sometimes things scroll to the end of a list or to the bottom of the screen. Not sure why
it should be a little easier to collect the souls you kill (make them come to you, like in god of war, or devil may cry). Also, you should be able to upgrade more than just the weapons with the souls. The last weapon you get should be better than it is. It should not stop you when using it. hotkeys 1-5 should be added for the weapons. Pretty good game though.
This is probably the worse launch game I've played in a long time. You can't avoid ufos or dinosaurs so why are they there? For random frustration? You can't end a launch without getting abducted or killed, and the coins are only near the bottom of the screen. Why is that?
Can't place soldiers, the other ones just shoot. It places whenever it feels like. The levels should be independent or you should at least be able to repair the buildings