It's a fun game, quite hard. It could really use some better graphics. The planes look good, but they need more animation and I didn't understand that the water was water at first.

If only you had added a scrolling background. This would have enhanced it so much more.

because of this fits with required theme we cant do slide scrolling in this game @asobitech

Please change the name of the link from "Web" to "Windows". This is confusing.

fun game, but colision, difficultly issues are rather large.

Controls were somewhat limiting and at times confusing. Making horizontal and vertical movement independent from each other would have been nice, and also allowed diagonal movement. As it was, holding down right, then also holding down up and subsequently releasing up while right is still held did not result in intuitive behavior. I first traveled right, then up (since the up key overrode the right key), and then continued going up even after letting up on the up key, but still holding right.

Given the instant loss penalty for missing a plane, and missiles that go down/right, my strategy was to always head straight for the top left of the screen, firing guns and missiles simultaneously as fast as possible. Given the speed of my plane, the location of the enemy planes, and the timing of enemy bullets, I would often either get hit by a bullet on the way up, or not get up there in time to stop the highest enemy plane. Basically, there were plenty of opening game states that I felt I simply could not ever survive, making it feel unfair.

I blasted on the keyboard to reach the end but the boss seems really unbeatable.I mean maybe it's a bug or maybe it makes make the game endless. Hard indeed.