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