Battlecruiser

The Battlecruiser appears as a boss for Stage 1, Stage 2, and as a mini bosses on Stage 7.

Appearance
The Battlecruiser takes form of a battleship with 4 cannons and a big chain gun in the center. There is also 6 fuel tanks which you can destroy it for a small amount of points.

Armaments
The Cannons fire single bullet each time. Each side of the Battlecruiser has 2 cannons. In the center of the Battlecruiser is the Chain Gun Turret that fires bullet rapidly. However, after firing it will reload for a few seconds before it can fire again. The Chain Gun Turret has much more health than the 4 cannons.
 * 4x Cannons
 * 1x Chain Gun Turret

Stage 1
For stage 1, defeating the Mantis Gunship is relatively simple, if a little grind-y given the low levels of your weapons. It is advised to stay at the side while the defenses fire, and then swing in front to shoot at it while the guns are inactive. Also, when the center turret is firing it is recommended to stay as still as possible so the bullets do not spread out.

Stage 2
For stage 2, the boss is not one, but two of the Battlecruiser. This boss battle is also relatively simple, if more hectic. It is advised to focus on one of the boats first, and then move on to the second one. Follow the tips for the first boss. However, be careful! Don’t fly around happily after destroying both ships; planes will then fly in from the top, and if you are not careful, you could crash into the planes and die.

Stage 7
For stage 7 the mini-boss fight gets REALLY hard. The Battlecruiser is oriented sideways so you can’t just laser it away while many, many Interceptors fly in on both ways.

Try to get the Chain Gun and some of the cannons first. The most damaging and space-filling weapon is the Chain Gun, so just go close to it before it starts shooting and try to drain its health as much as possible, along with trying to get maybe the two cannons in the front. Next you can shoot the Interceptors, trying to disable as many as possible, and then take out the weakened Battlecruiser.

Trivia

 * The Battlecruiser shares a same design as the one in the 2004 version of the Sky Force. Although, the Battlecruiser in Original Sky Force has only 2x Cannons and 1x Chain Gun, while in the Anniversary version had additional 2x Cannons at the front.
 * A wreckage of the Battlecruiser can be seen at the cave entrance in Stage 9.