Here is the full list of all 9 Battle Drones: Red Rock Resistance Demo achievements.
Destroy 10 A-EYE drones
Destroy 100 A-EYE drones
Destroy 300 A-EYE drones
Purchase the Katana upgrade
Purchase the Big Pistol upgrade
Activate a second life with Solomon's Insurance
Reach the endless round
Collect and hold 7000 hardware in a single match
Collect 7000 hardware in a single match