Here is the full list of all 16 Dress-up Traveller achievements.
Defeat 500 enemies
Get all the equipment
Has 50000 coins
Defeat tree demon
Defeat big spider
Reach level 25
Defeat 150 enemies
Has 20000 coins
Reach level 20
Reach level 15
Get honey
Reach level 10
Defeat 50 enemies
Has 5000 coins
Reach level 1
Has 1000 coins