Wanted to let you know that I further improved the Bubble Trouble artwork.
I came across a reasonably good quality photo of the Bubble Trouble dioram ...
Quick update:
I noticed from another (japanese) YouTube video that the trapdoor and ship props behaved differently and realised that they were the op ...
New artwork file for Bubble Trouble (bubbletr) is now available for download from https://github.com/Widge-5/bubbletr-mame-artwork
I'm sorry it took ...