Tip: You can use Lunar Magic's Overworld Layer 3 Editing system to edit or create your own layer 3 images (castle bricks, fish, rocks) and apply unique effects per level via the Layer 3 Bypass in the main editor.
Fixed Harry's interaction with solid blocks from the sides, as it previously used to get stuck inside walls without properly turning around. Extra bit now determines if the sprite will always be small or if it'll become big when sticking out its spines. Noticeably optimized graphics drawing routine to use smaller tilemap/displacement tables. Also optimized overall code a bit, allowing more flexibility when coming to CFG properties. Added screenshots, tags and SA-1 support.