At any point in-game, hold down the following keys on your keyboard to unlock an ability. A faint ding will sound to confirm the effect. Both powers may be entered and used simultaneously. If you exit the game, the codes must be reentered to regain the effect.
LG - Higher Jump
MR - Increased Speed
Use a Hang Glider or a Balloon:
To use the hang glider or the balloon, you need to go into Knytt's folder and change the Settings.ini file. Add a [Secrets] Section and add the codes under it. You can only use one at a time.
Extra=Balloon - Use a Balloon
Extra=Hang Glider - Use a Hang Glider