Here is the full list of all 30 Blurple Food Wars achievements.
Get to Wave 2 on Endless
Get to Wave 25 on Endless
Get to Wave 50 on Endless
Get to Wave 100 on Endless
Complete campaign on hard
Complete the Campaign
Get to Wave 500 on Endless
Get to Wave 250 on Endless
Get to Wave 5 on Endless
Sodius Defeated
Stop each soda stream just before it starts, leaving all dispensers frothy
Frothy, but on hard mode
You are on your way now!
All upgrades unlocked
Recruit an ally to your side
All allies recruited
All countries liberated
America liberated
Mexico liberated
Japan liberated
China liberated
Russia liberated
Australia liberated
Italy liberated
5000 coins earned
All stars achieved
100 Skill Points
Defend a country while taking zero damage. (Without an ally)
Defend a country while taking zero damage. (With or without an ally)
100% shooting accuracy while defending a country.