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.
Acquire all gems.
Defeat Zombogod with perfect life.
Defeat Zombogod.
Fully upgrade all characters.
Have the Rocketeer kill 500 zombies.
Have the Rocketeer shoot 50 extra rockets.
Use Air Strike 20 times.
Have the Sniper kill 500 zombies.
Rescue 15 refugees in total.
Have the Gunner stun 200 zombies.
Have the Sniper shoot through 100 zombies.
Kill 1500 zombies in total.
Kill 100 giant zombies.
Have the Rocketeer shoot 500 rockets.
Have 500 critical shots in total.
Have the Sniper shoot 750 bullets.
Kill 100 flying zombies.
Have the Gunner kill 500 zombies.
Use Time Machine 35 times.
Have 10000 gold.
Use Bomb of Duty 50 times.
Have the Gunner shoot 1000 bullets.
Unlock the Rocketeer.
Unlock the Sniper.