The BIN file is split into multiple blocks where each block (except the first 3) represents a level. Although each block contains different file types, and in a different order, these are the most common ones.
As an example, here are all the files in Vision 1-1:
- 1: OA05 (sound bank)
- 2: TIM (sprite sheets)
- 3: TIM (textures)
- 4: Backgrounds
- 6: Code
- 7: Code
- 8: Sprites
- 9: Level
- 10: SEQ
These files are archives which contain .TIM (graphics) files. This is used to load textures and palettes into the VRAM.
An archive with the backgrounds for the level. Contains .TIM (the tilesets), .CEL (the tiles) and .BGD (the maps) files as well as the background modifiers for each sector. The modifiers define the layers, camera clear, palette animations etc.
The sprites for the 2D animations used in the level. These are stored in a global array with 70 entries. The last entry contains fixed sprites while the rest are the ones used in the current level.
Contains multiple .VAB and .SEQ files. These are sounds used in the level.
Just a .SEQ file. Most likely the level music.
Blocks of compiled code. This doesn't get parsed and instead just loaded into memory. These define the object functions and cutscenes among other level-specific functionality.
The primary level data. Contains the object models, sector data (such as the level models and movement paths) and more.