Here is the full list of all 18 Chocolat Rush achievements.
Eliminated 100 Flying Boomerangs, Chocoballs.
Purchased all weapons in the game.
Played Nightmare mode without getting a single hit for 5 minutes.
Defeat each kind of enemy once.
Played Normal mode without getting a single hit for 10 minutes.
Did not acquire a weapon box until it disappeared.
Defeated 3,000 enemies.
Knocked down 1 Bonbon cannon 5 times.
Defeated 5 enemies by piercing them at once using a crossbow.
Purchased a weapon for the first time.
Scored 100,000 points.
Scored 300,000 points.
Scored 50,000 points.
Defeated 30 Chocolas using the Special Rocket.
Defeated 1,000 enemies.
Achieved 300 combos.
Reached the max weapon level.
Defeated 100 enemies.