Eliminate Aliens

In 3055, man sent a fleet to explore space. 100 years later, the fleet discovered an unrecorded planet. '+
'At the same time, a group of unknown creatures appeared. In order to bring information back to the earth, '+
'the spacecraft had to go through all the difficulties and highlight the encirclement......
1 Upgrade the composite aircraft to enhance its properties
2 Enhance the defender's attack properties
3 Upgrade the missile's performance
Let's start the battle. Operate the aircraft to avoid the enemy's attacks and counterattack with missiles. Destroy all alien creatures. Break through the siege.