Here is the full list of all 18 Deadly Hunter VR Demo achievements.
Kill Bosses Progress
Kill Ladybugs Progress
Headshot Berserker Progress
Headshot DarkSpear Progress
Headshot Shieldon Progress
Headshot Mading Progress
Headshot NightShadow Progress
Headshot Ballista Progress
Headshot SmokeLord Progress
Headshot Elite Monster Num Progress
Lethal Arrow Kill monster Progress
Fire Arrow Kill Monster Progress
Poisonous Arrow Kill Monster Progress
Clear level 5 with clamp only
Clear level S1 with mud flat only
Clear level 5 with arrow tower only
Clear level 4 with barricade only
Clear level 3 with landmine only