If you like small short time 2D games, this is the right choice for you:
Being in a comic like 2D world, that reminds a little bit of worms, you control one of five fighter planes with each different playstyle and abilitys.
Armed with MGs, Rockets, Lasers and Bombs, you have to shoot down the enemys and survive as long as you can.
The game gives you a leveling system, achievments and with that the ability to customize your choose of abilitys you use.
Ingame you not only fly an shoot but have basic physical elements like altitude, speed and afterburner. If you get to slow while flying up, your engine will stall and you will fall from the sky. Also you can find one use weapons on the map, that will give you rockets, EMP fields and shields.
The game has a lot of game modes like Deathmatch, Team Deathmatch, last man standing and some form of capture the ball mode.
Even if it hasnt that big community anymore it still has usable full functional bots, which arent that big challenge, but still decent and dangerous.
Being able to be played with only the mouse, it is a nice game on mobile devices and a short game for long traveling.