Hey there. I have a BG from the game above, also known in Russia as "Mario 4: Космическая Одиссея". TheChosenOne59 ripped this and I converted it to SMW usage.
The orginal author says he needs no credit.
Recommended BG scrolling to None for both horizontal and vertical. You can also enable vertical scrolling if Mario goes above or very slow horizontal scrolling using ASM.
You can also use it for a title screen or a cutscene.