- Text for the opening crawl is actually on the sprite layer instead of BG layer 2.
- Presumably this is to allow the text to scroll upward while the background scrolls horizontally
- There are 128 16x16 sprite slots availabe.
- Sprite OAM data is copied from $7e0210
- Unlike in other text types, not all text in VRAM is shown, and it's not neccesarily shown in order.
Some quick terminology clarification: the opening is split into 6 "sections." Each "section" mattches up with an image shown in the opening. Each section is then divided into 8 "sub-sections" which can be shown at various (relative) positions.