Here is the full list of all 20 Shawy Adventures achievements.
Grab every coin at the Mountain area
Spend 200 coins on any salesman
Trigger the switch at the Lava Corridor without getting hit before
Reach Venomteeth Nest without dying
Complete the game
Complete the game in Hard difficulty
Complete the game in Hardcore difficulty
Die 100 times
Kill Venomteeth in less than 70 seconds
Kill Venomteeth without using any Shuriken on the battle
Kill Venomteeth in Hard or Hardcore mode
Buy 500 Shurikens
Reach 300 coins on your bag
Buy the Scimitar
Buy the Long Sword
Kill every enemy on the Infested Sectors area
Buy 20 lives
Kill Darktopus without getting hit on the battle
Kill Darktopus in Hard or Hardcore mode
Kill Winged Demon in Hard or Hardcore mode