Here is the full list of all 42 Fiery Disaster achievements.
Perform a 15x combo.
Perform a 10x combo.
Deal 10 points of damage with BB Lava Gun in one match.
Perform a 5x combo.
Deal 15 points of damage with Burning Ground in one match.
Finish Campaign Mode on Hard.
Finish Campaign Mode on Normal.
Get 6 Silver Medals in Campaign Mode.
Get 12 Silver Medals.
Get 6 Gold Medals in Campaign Mode.
Get 12 Gold Medals in Campaign Mode.
Get Gold Medal in the singleplayer match of Arcade Mode.
Get Gold Medal in the multiplayer match of Arcade Mode.
Get Platinium Medal in the singleplayer match of Arcade Mode.
Get Diamond Medal in the singleplayer match of Arcade Mode.
Get Platinium Medal in the multiplayer match of Arcade Mode.
Get Diamond Medal in the multiplayer match of Arcade Mode.
Spend 400g in one Arcade Mode match.
Burn whole Playing Field in one Arcade Mode match.
Withstand 4 minutes without missing any shot in one Arcade Mode match.
Withstand 4 minutes without using Assault Guns in one Arcade Mode match.
Withstand 4 minutes without using Radioactive Oil in one Arcade Mode match.
All gates are equal or below 20% HP.
Every Village has all Special Buildings built in one Arcade Mode match.
Earn 100g from attacking Bankers in one Arcade Mode match.
Kill 2 Heroes in one Arcade Mode match.
Kill 2 Female Instructors in one Arcade Mode match.
Kill 30 Warriors in one Arcade Mode match.
Destroy 20 Catapults in one Arcade Mode match.
Get Gold Medal in the singleplayer match of Zombie Mode.
Get Gold Medal in the multiplayer match of Zombie Mode.
Get Platinium Medal in the singleplayer match of Zombie Mode.
Get Diamond Medal in the singleplayer match of Zombie Mode.
Get Platinium Medal in the multiplayer match of Zombie Mode.
Get Diamond Medal in the multiplayer match of Zombie Mode.
Kill 1000 Zombies.
Kill 300 level 1 units.
Kill 300 level 2 units.
Kill 300 level 3 units.
Move your Spiky Barricade 5x in one match.
Deal 5x damage with Radioactive Oil in one match.
Kill 8 Warriors with Assault Guns in one match.