Nice game. Very authentic sound :) But it doesn't fit the resolution (84x48).
Viewing post in Airstrike jam comments
You will first have to build your project without scaling at 84x48 pixels.
Then you will need to open the index.html. Inside you should see a <style> tag somewhere. Inside that tag there should be a line that says: #canvas {
...
}
Add the following code inside the canvas.
transform: scale(10, 10);
transform-origin: top left;
image-rendering: pixelated;
And that should do the trick. If there it doesn't work then send me a screenshot and I will check it out.