Here is the full list of all 15 Devolver Bootleg achievements.
Beat the Boss in Enter the Dungeon
Kill 100 frogs across all games.
Acquire 10,000 currency across all games.
Beat Hotline Milwaukee
Take damage in Catsylvania
Play as the frog in PikuBiku Ball Stars
Open the System Menu 1000 times.
Open the System Menu 100 times.
Try to enter a cheat code.
Unplug a Gamepad.
Plug in a Gamepad.
Navigate to the Controls page of the System Menu.
Close the System Menu
Open the System Menu.
Purchase and launch the Devolver Digital Bootleg Launcher.