Arachnotron

Arachnotron is the 2nd final boss of Sky Force Anniversary, which is an old version of the Omega from Sky Force Reloaded.

Appearance
Arachnotron is a 4-legged walker that controlled by a sentient AI program. The boss battle against Arachnotron is extremely hard. It's equipped with several deadly weapons.

1st phase
4x AA gun

These guns will fire bullets at the player until it's destroyed. Simple, right?

6x Homing missile launchers These weapons will fire missiles that will chase the player for 0.5 seconds. The weapon is indestructible.

2nd phase
2x Flamethrowers

These weapons will shoot fire in a straight line in an attempt to box in the player. The flamethrowers also won't aim at the player, they only shoot straight for a while and then stop.

3rd phase
1x Gatling gun

This gun fires powerful high velocity projectiles at an extremely high fire rate. It's pretty easy to destroy the gatling gun, but be careful as the bullets do a lot of damage.

4th phase
1x Ultra-heavy laser

When the gatling gun is destroyed, the machine guns will be blown off to reveal the laser cannon. It fires a light blue laser that can shoot through your shield, be very careful when facing it. First time, it will shoot the laser straight. Second, it will rotate 60 degrees to left and right. Third, it will rotate 360 degrees. It then repeats the cycle. Better destroy it before firing third time as there is no way to avoid the ultra-laser. When the laser cannon is destroyed, you are finally free to completely destroy the Arachnotron. Be careful though as the homing missiles will continue to fire at you until the main body is destroyed.

Combat Routine
Phase 1 (4x Rapid Turrets).

Just like Nasty Owl's first phase. These Turrets fire unstoppable in vertical position at the center. There is nothing hard about first one (with the exception of Homing bullets which they keep distracting you).

Phase 2 (2x Flamethrowers).

New weapons engage to you are Flamethrowers. They fire a long flame in vertical just like previous phase. They only hard that they cut into 3 lines, in which make you hard to evade those homing bullets while you also have to evade these flames too. If you want to easy, just use your laser to destroy one of them to evade easily. Remember to stored your lasers for the final phase.

Phase 3 (Powerful Machine Gun).

Another new unique weapon engage. A Machine Gun fires a few of bullets but with high rate and deal massive damage. Keep attention both Machine Gun and Homing Bullets so that you won't get killed fast.

Final phase (Ultra Big Laser).

Nightmare phase. You gonna face the biggest laser you have ever been. The boss will eject its hatch and revealing final weapon. A large Laser that it able to shoot through the shield and hit you. It has 3 fire type (2 in PC version). First time it fire straight, no threats. Second, it turn 60 degrees, no threats if manage to avoid Bullets. Third (only for Android, unavoidable), it turn 360 degrees in random directions. Better use shield for this phase and all of your Lasers to destroy ultra weapon.

Difficulty
The Arachnotron is the hardest boss of Sky Force Anniversary. It shows up after the death of General Mantis. As the difficulty increases the laser becomes faster, in general, boss becomes harder.

AI's quotes
"Jamming Communication" "Shield Generators Online"

"Release the Arachnotron"

"Charging Laser" (says it one time per weapon destroyed)

"Laser Available"

"You have defeated a machine. More will follow."