Every plane is better than previous in every stat.There should be some planes that are faster,but have weak armor,some with high coin attraction range,but slow,some heavily armored,with more slots,but painfully slow...and drawing your own plane will be great.Anyway,great game 4/5.
After beating the first level(destroying UFO),open map and point at the UFO icon to see next level details.Than click the icon to start next level.After you beat that level open the map again and so on...The blue bar is not fuel.That is armor and decreases as fighters hit you with lasers,and UFOs hit you with missiles(grey circles).
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