Sprite Crafting in Photoshop *Problem*

[gust]

When making sprites, one important thing is to mantain the image as clear as possible.

I made a sprite of a man standing still, then split the parts into different layers (torso, arms, legs, etc). When I rotated the parts to make it look like a "running frame" of a sprite, the Photoshop automatically blurred the image. The blurring helps on larger images, but it screws with small stuff like this:


So, how do I rotate a layer without blurring it?

Thanks in advance!