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