Complete the game with the move guide turned off.
Play Dragon's Lair on its anniversary: June 19.
Beat the game in Hard mode.
Die via asphyxiation in the bedroom scene (Hard Mode).
Lose your last life in the Drink Me scene... and watch carefully.
Use the shortcut move in the Giddy Goons Room (Easy Mode).
Beat the game with a controller
Beat the game with five lives.
Get the highest possible score (427,469) using the controller.
Get off on the 9th floor of the falling platform.
Continue playing to unlock this secret achievement.