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