Am I supose to be exact and precise to beat some levels? Well, do something with controls. Now they sux. I like the game but controls make me frustrated.
Ground is my worst enemy.
Game needs 'damagemeter', bigger altimeter (or some voice warning when you're too close to the ground) and pause button. And maybe short instruction 'how to fly' because I've no idea why sometimes my engine stops.
I'm against checkpoint - please, keep game as real as possible. Instead you can give us difficulty levels: easy - no engine blocks, checkpoints, pause, 'damagemeter', inifinite ammo. Medium - checkpoints, pause, infinite ammo. Hard - just like now plus limited ammo (more efficient shooting could be cool, now the best strategy is constant fire).
At the beginning it seemed a bit boring to me but after a few minutes of being master/teacher I felt like Yoda or sth. Nice game.
Tier 3, Holy Paladin, 126 906 points - meet Bitch Stewie.