There have been some reports of the original blue penguin, and I can confirm it’s a bug! As you can see, my penguin is wearing the original blue colour and a grey belt, but I had neither of those items on.

To do it, do the following:
- Wear the Thunder Blade
- Put on shoes, then take them off. Keep the blade on your penguin
- Wave
- Your penguin will then turn original blue!



