MiSTer-devel/Arcade-PinballAction ? reverse-engineered prompt

Build me a MiSTer FPGA core for Pinball Action, the 1985 Tehkan arcade game. I want it to feel like the original hardware, with the main game logic, sound, scrolling backgrounds, sprites, screen flip, and proper video output working on MiSTer. It should load the standard MAME pbaction ROM set through an MRA file, and support both HDMI and analog video with the usual adjustment controls.

If there are any small visual differences at the edge of the screen, please keep the game fully playable and aim for the most accurate hardware style behavior you can. Use the existing MiSTer project setup and make sure it can be built from the Quartus project for a DE10 Nano. If you need to check current docs or references online while working, go ahead and do that.