Official 1.1 update

Hi!

Just finished and uploaded the update. It's rather smaller, but it adds one quite important mechanic - ammunition.

Change log:

• Before that, I added a shake to the screen when an enemy rocket hits us; now it also works vice versa

• I added a yellow plane, it has a 5% respawn chance and is... indestructible!

• I improved spawn chance of the blue plane, now it works as it should - with each level the chance increases.

• I added ammunition. At the start, you have 10 ammo. Each shot down plane drops an ammo crate, and when it falls, you'll receive it. All crates, except from the blue plane, have 5 ammo, while from the blue one has 10.

And that's all, I think.

PS. It's only for android now