BA with Transformation B/Blank C

[Addresses for JP1.0]

BA with bottle on a transformation's B button or a blank C button has 'equipment slot' offset value 0xFF, which causes the BA to write into the scene flags.

The timestamp, written to 0x1F3DA0, is part of the Mountain Village flags (spring and winter are scenes 0x5A and 0x50, respectively, and they share flags). The 4th byte of the timestamp writes to the byte whose 0x02 bit controls whether or not the red rupee under the blacksmith's stairs has been gotten.  I haven't been able to find anything that the other 4 bytes control.

0x1770, written to 0x1F3DD6, is part of scene flags for scene 0x53, Path to Ikana. The 0x80 bit at 0x1F3DD7 controls whether or not the hookshotable tree is there (so BA gets rid of the tree if present).

0x1770, written to 0x1F3E06, is part of scene flags for scene 0x55, Music Box House. I don't know of anything they affect.