Here is the full list of all 25 Charlie's Adventure achievements.
Get 10 zombies killed by the Arrow Machine.
Complete all levels with 3 medals.
Finish the game on any difficulty.
Finish the game on medium difficulty.
Finish the game on hard difficulty.
Get 10 zombies to die by an Axe.
Get 10 zombies killed by the fire.
Kill 200 Zombies.
Get 10 zombies killed by the Saw Trap.
Get 10 zombies to die by a Cannon.
Collect a total of 500 stars.
Dash trough zombie 100 times.
Hit the crazy zombie with the bombs with a bullet.
Collect all stars on any level.
Kill 75 Zombies.
Slam the ground and hit a zombie 100 times.
Get the medic zombie to heal you for 100 total health.
Collect a total of 100 stars.
Make the zombie that charges you hit a wall.
Finish first level.
Slam the ground and hit a zombie 10 times.
Get 10 zombies to be squished by the Stone Trap.
Dash trough zombie 10 times.
Kill 10 Zombies.
Collect a total of 10 stars.