Here is the full list of all 42 TankBlitz achievements.
Kill 100 enemies with missiles.
Win a level on expert using each tank.
Kill 500 enemies using the cannon.
Complete Chapter 3.
Kill 500 enemies using the mortar.
Fully clear a level without using the machinegun.
Fully clear a level without using the mortar.
Kill 5 infantry with missiles.
Fully upgrade the Venom tank.
Complete Chapter 2.
Kill 1000 enemies using the machinegun.
Run over 100 infantry.
Destroy 3 missiles using the mortar.
Kill a boss using only the machinegun.
Fully clear a level in under 3 minutes.
Fully clear a level without using the cannon.
Fire 10000 machinegun bullets.
Complete Chapter 1.
Kill 5 birds.
Kill 400 enemies using the machinegun.
Kill 3 enemies with a single cannon shot.
Kill 200 enemies using the cannon.
Kill 200 enemies using the mortar.
Kill 150 enemies with each main weapon.
Kill 40 infantry using the cannon.
Kill 100 enemies using the cannon.
Kill 25 crates.
Fully clear a level without getting hit.
Kill 100 enemies using the mortar.
Kill 200 enemies using the machinegun.
Finish a level without harming any infantry.
Complete the tutorial with 100% accuracy.
Kill 50 enemies with each main weapon.
Complete the tutorial in under 90 seconds.
Kill 5 enemies with a single mortar shell.
Complete Chapter 4.
Kill 200 enemies with missiles.
Kill the final boss with a missile.
Complete every level on expert difficulty.
Fire Tempest machinegun nonstop for 20 seconds.
Absorb 1000 damage with the Mammoth Shield.
Get every achievement.