Here are my suggestions:
15898 (starting room) Emphasize on the first BBB that the player should make sure to read all the signs throughout the tutorial.
15897 BBB should probably list all of the default keys the game uses and what they're for. This sign should also mention that Jack has to use the jump key PLUS a direction arrow key to jump over the snake, and not just the jump key which only takes him straight up.
15894 Second BBB should mention the ghost platforms.
15891 BBB about the lever base colors and whether or not they reset. Since the designer can change how levers act in the Level Builder, this isn't necessarily true, right?
15890 BBB reads
They are all the same have the same mechanic.
Should be corrected.
16089 BBB should tell the player to walk into the wall, just to make absolutely sure they go there and learn about maps.
16306 BBB says
Unlike medusa heads, these ghoul heads...
Before or after this point, there is no mention anywhere of medusa heads, so that is confusing. There's a medusa head in 16289 so they could be explained there. Also explain that fire kills them.
Mention somewhere (probably near the beginning) what happens when Jack dies - he comes back flashing and can't be killed again while flashing - not until a key is pressed.
