Update v3.0 (Now for Android)

Wow it was a terrible update but I managed)

And so that has changed:

• By far, the biggest achievement of this update is the Android version of the game. Most of the major time was spent optimizing this version. The game will work steadily even on older Android devices
• Also changed the balance of the gameplay.
  Now the increase in the power of enemies will be smoother.
• Viking shield added to main armament (new players only)