I used to be an hardcore gamer but I'm fairly casual now. I cannot last more than a few seconds.
I'd say the game requires a very accurate estimation capability. The enemies are large in number since start (so I cannot even tell if they follow a pattern or not) and the size of their bullets are massive compared to player's.
Personally, I haven't noticed any strategic component at all, it's just a matter of converging functions. Each enemy appears to require a few shots to go. Your ship takes a few shots to go. There are more enemies, and their bullets are bigger so there's basically an order of magnitude divergence to overcome. I suppose letting the blast charge is key, this would require some tactics, it might be possible as the player is experienced, but with no chance at understanding the mechanics in 10-second bites, my determination rapidly declined.
The language used by the game does not say "it never ends", it says "it ends now".
I'm not sure but... do you get damage by hitting the borders of the game area?
How often are you adapting enemy ships?
Thanks for your feedback.
The alien traits that you've mentioned, such as large blasts and large/armored ships are variable. There are three sizes of ships. The larger the ship, the slower it moves, but it gets more HP in return. Smaller ships move faster, and have less HP. Large alien blasts require more energy, so they will fire them less often.
As you and many others have mentioned, the difficulty needs to be toned down. It is my next goal.
You are correct about the shield wall. They cause 1 to 2 points of damage to your ship if you hit them; how much depends on your speed. If you can't stand it, choose the Shield Key special.
The rate of alien mutation is based on how many ships you destroy in an invasion. If you force the aliens to retreat, they will change a third of their traits. If you destroy less, they will change fewer traits. If you destroy none, or next to none, they won't change at all.
Thanks for your time. If you need feedback on a project, please e-mail me: firstname.lastname@example.org