Awesome game. Even though the mechanics were very simple i didn't get bored through the whole game.
If you're having trouble with level 14 use the infinite fire fort combo (Almighty+fire fort (till almighty stops)+Fight! Fight!, and repeat), be quick deploying them, and move all over the screen as fast as possible to spread them out. After the first two or three electricity ships start to show activate rage and destroy them as quickly as possible. Have teleport just in case you don't destroy them fast enough, but if you do that, you shouldn't need to teleport more than once.