Here is the full list of all 18 Kill It With Fire VR achievements.
Kill three spiders with a single throw
Transform a Spiderling hatched from a Queen into a Queen
Get the secret ending
Find every battery
Knock all of the letters off KIWF HQ
Find all Equipment
Find every upgrade
Find every Tracker Upgrade
Beat the game
Get the golf ball in the hole
Fire the RPG at the printer
Kill every type of spider
Find every Flavor
Kill a spider while Webbed
Destroy the gas station
Destroy EVERY dish
Burn the money in the safe
Smack the piano