Here is the full list of all 13 Drone Striker achievements.
Upload a score to the leaderboard
Complete the tunnel checkpoints in any difficulty
Complete the harbor level in any difficulty
Complete the city level in any difficulty
Complete all levels in normal mode
Complete all levels in difficult mode
Collect all items that can increase maximum HP
Collect all items that can increase maximum Missiles
Lock ten enemies at one time and fire missiles
Get at least 1,000,000 points when passing the game
Get at least 4,000,000 points when passing the game
No damage is received when the mission is completed
No bomb is used when the mission is completed