When I put PK into the room (with a view size of 640x480) I found the character to be quite small compared to how he appears in the actual game. After I carried the sprites across into the sprite editor of GM I found that the sprites for both characters came out at about 32x32. To practice this I went to The Spriter's Resource site and acquired a sprite sheet for X and Plague Knight (PK). I'm currently trying my hand at some sprite art and I wanted to settle on a particular style along the lines of Mega Man X or Shovel Knight.