The tutorial and settings were not working for me.Changing the colour of your force shield to be invincible to your enemies bullets was really creative. The art was also nice.
Nice work.
That's . . . bizarre. The tutorial does have the player ship in it, but just as a slide-image. The "background" is supposed to be there too. Because it is a slide it doesn't have any enemies in it, it isn't an actual tutorial level. Calling it a "tutorial" is a bit misleading because 'tis just more like "instructions" since all it has are still-images. What's happening with the settings makes no sense though . . .
Maybe this game is too powerful for your device? Although I doubt it. Does this problem exist with the exe or the browser-version?