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 medium difficulty.
Finish the game on hard difficulty.
Finish the game on any difficulty.
Get 10 zombies to die by an Axe.
Kill 200 Zombies.
Get 10 zombies to die by a Cannon.
Slam the ground and hit a zombie 100 times.
Get 10 zombies killed by the fire.
Get 10 zombies killed by the Saw Trap.
Collect a total of 500 stars.
Kill 75 Zombies.
Hit the crazy zombie with the bombs with a bullet.
Dash trough zombie 100 times.
Get the medic zombie to heal you for 100 total health.
Collect all stars on any level.
Finish first level.
Collect a total of 100 stars.
Dash trough zombie 10 times.
Slam the ground and hit a zombie 10 times.
Get 10 zombies to be squished by the Stone Trap.
Make the zombie that charges you hit a wall.
Kill 10 Zombies.
Collect a total of 10 stars.