Go back and review the previous week:
$0200 is the Y position of the sprite (up and down)
$0203 is the X position of the sprite (left and right)
Quote:
Sprite Data
Each sprite needs 4 bytes of data for its position and tile information in this order:
1 - Y Position - vertical position of the sprite on screen. $00 is the top of the screen. Anything above $EF is off the bottom of the screen.
2 - Tile Number - this is the tile number (0 to 256) for the graphic to be taken from a Pattern Table.
3 - Attributes - this byte holds color and displaying information:
76543210
||| ||
||| ++- Color Palette of sprite. Choose which set of 4 from the 16 colors to use
|||
||+------ Priority (0: in front of background; 1: behind background)
|+------- Flip sprite horizontally
+-------- Flip sprite vertically
4 - X Position - horizontal position on the screen. $00 is the left side, anything above $F9 is off screen.
Those 4 bytes repeat 64 times (one set per sprite) to fill the 256 bytes of sprite memory. If you want to edit sprite 0, you change bytes $0200-0203. Sprite 1 is $0204-0207, sprite 2 is $0208-020B, etc