Sure! You can use online tools like **Pixilart** or **Piskel** to create pixel art of a character in a 64 by 64 pixel grid. 

Here are some steps you can follow to get started:

1. Create a new document with dimensions of 64x64 pixels.
2. Turn on the grid view so that you can see each individual pixel.
3. Choose your colors and start drawing your character pixel by pixel.

You can also use reference images to help you create your character.

Let me know if I can assist you with anything else!
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