Here is the full list of all 29 Galactic Rangers VR achievements.
Complete Training
Pass the first level without dying
Complete game at easy difficulty
Complete game at normal difficulty
Complete game at hard difficulty
Complete game at expert difficulty
Сomplete all difficult levels
Complete Episode 01 1st challenge
Complete Episode 01 2nd challenge
Complete Episode 01 3rd challenge
Complete Episode 01 4th challenge
Complete Episode 01 5th challenge
Complete Episode 01 6th challenge
Complete Episode 01 7th challenge
Complete Episode 01 8th challenge
Complete Episode 01 at easy difficulty
Complete Episode 01 at normal difficulty
Complete Episode 01 at hard difficulty
Complete episode 01 at expert difficulty
Unlock extra 10 waves for Defence Mode
Play Episode 01
Play Defense mode
Reach wave 5
Reach wave 10
Reach wave 15
Reach wave 20
Reach wave 25
Slice 300 asteroids
Reach wave 30