The game is pretty hard but that's kinda by design. I don't want the beginning to be just a formality/boring once you get better. But I'm also considering how I can rebalance it cause it does start pretty hard atm. Maybe the second stage I add will actually be a more chill one before this one.
What did you expect for shooting? Are you playing with the missiles aircraft? This one is a lot harder than the gun aircraft and it's been reworked already (will be in next version).