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