Best among difference games. Losing is not the end, instead it'll show what have you done (or not), and you'll be given another chance. Like Dreams, it's an easy game, but gets hard though not impossible or buggy like other games.
10 engine, 30 shield, rest on weapons. just continuously go upper left / right and shoot front of you, so that particles will act like a shield and the ones following you will be hit. You'll die on some missions, but just continue. On level 20, little blue ones drop mines, so on that level instead of shooting forwards, shoot backwards. You'll make it to lvl21. On lvl21, just avoid boss. With that much weapon power, he'll go down on 2-3 passes. HF! (note: weapon after a certain level will be tri-shot, then it'll be a wave. when it's a wave, you're good to go!)
The RPG elements, dialogues, are really brilliant. Even though it's another genre of game, the RPG elements really makes you feel as if it's a bigger game than it is, helping you to live the game. The girl I've saved from town drunk, now comes back and thanks me, and a smile appears on my face aswell. Few, but good dialogues that have a nice effect. I salute the developer(s)!
deli_conker: Your suggestion is already in the game. When you recycle a dry / non-operating miner, all non-operating miners will be recycled. Open your eyes.
To those who suffer on Level 6, this might be useful. Build 2-3 additional Solar Power, then 2-3 Energy Storage. Build 1-2 Pulsar 4-5 THOR, 1-3 Repair, and 2-3 Missile. Missile has to be offline till they get grouped. Upgrade everything except Repair. When first singles are out and they are together, put Missiles online and watch it :)