How high up in terms of difficulty there would be Blue Wish Resurrection(not plus)?
Tried Original and died just before the final boss.
If this game gave only one extra life from somewhere....
I assume you mean difficulty in comparison to Touhou. I'm not an expert on this game by any means, but my estimate would be:
Heaven = between Easy and Normal
Original = easyish Hard mode
Accel = don't really know, I haven't played this mode much.
Hell = difficult to tell, but definitely harder than any Lunatic if only because of the TLB (though the rest of the game is plenty hard too)
I don't think anyone in the west has 1cced BWR on Hell yet, or at least I haven't heard of anyone.
Also, in case you didn't know, there's a
secret 1-up at the very end of stage 3. You need to trigger all of the gold chutes in the stage and shoot the spot with your focused shot to make it appear.