Mystery Gift

Mystery Gift is an option on the menu screen which gives you the chance to receive special gifts.

So far, all of these give you Shinies, but there may be other types of giveaways in the future.

How To Receive
To receive a Mystery gift, you will need a certain code, this code can be given to you from Sam or Dan (the creators of PTD). In this case, the code will be one time use only.

You can also find the weekly code on Sam & Dan Games' blog here. There are also periodic giveaways from his twitter that you can win by answering questions.

Codes You are able to use these codes if usable an infinite amount of times on any profile.
Usable

Shiny Spearow: 721R6934

No Longer Usable Shiny Charmander: 381RM1N4

Shiny Abra: S16928o4

Shiny Zubat: P0K35644

Shiny Rattata: 01543ON4

Shiny Pidgey: 5234

Shiny Jigglypuff: 673034

Shiny Geodude: 5231 (Formerly given after, and only usable after, completing the Pewter Gym Challenge. Now the Shiny Geodude is given directly)