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+## Space
+
+This is an evolution from the `basics/sprite.s` and `basics/input.s` examples.
+That is, we are no longer just showing a sprite, but we also allow the player to
+move it and shoot bullets according to the player's input.
+
+The movement is done by taking into consideration subpixels. For this, I have
+taken most of the code/idea from [NES
+Hacker](https://github.com/NesHacker/PlatformerMovement). Thus, this part is
+mostly attributed to him.