Finished additions of levels THE RIGHT WAY. Involved some refactoring.
Changed size of pause button and label.
Third enemy type. Need to transform animated gif into spritesheet and use animations.
10 levels, incremental difficulty.
Fixed bug when shotting backwards or exactly up or down. Also tweaked rotation speed.
Added next level button.
Added a particle system feature for a level.
Added snow ParticleSystem to level 8 ;)