Here is the full list of all 24 Zombo Buster Rising achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Fully upgrade all characters.
Have the Rocketeer kill 500 zombies.
Have 10000 gold.
Use Air Strike 20 times.
Have the Sniper kill 500 zombies.
Have the Rocketeer shoot 50 extra rockets.
Kill 1500 zombies in total.
Use Time Machine 35 times.
Have the Gunner stun 200 zombies.
Have the Rocketeer shoot 500 rockets.
Have the Sniper shoot through 100 zombies.
Use Bomb of Duty 50 times.
Have the Sniper shoot 750 bullets.
Have 500 critical shots in total.
Rescue 15 refugees in total.
Have the Gunner kill 500 zombies.
Have the Gunner shoot 1000 bullets.
Kill 100 giant zombies.
Kill 100 flying zombies.
Unlock the Sniper.
Unlock the Rocketeer.
Acquire all gems.
Defeat Zombogod.
Defeat Zombogod with perfect life.