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