I tested the american and japanese versions of the game, v.1.0 and v.1.1. Probably works on PAL too.
This is only a piece of the utility script that I'm creating (which is a mess yet). Support for BizHawk and maybe Snes9x-rr is coming.
You can view offscreen sprites by increasing the lateral paddings of the emulator:
Configure > Settings > Advanced > UI paddings
You can draw only one tile area with left click.