How can I 'blow up' small pixel art?
I have this small pixel art as example. Is there a way to make it bigger without it getting blurry or fuzzy in Photoshop?
Yes, simply use "Nearest neighbour" as the resample algorithm in the "image size" dialog
(image -> image size)
Edit: @CAI gives a nice tip - "It's also worth mentioning, if you don't want any distortion at all, multiply the scale by whole multipliers (so 2x, 3x, 4x or 200%, 300%, 400% etc.)"