This is a second set of the arcade game Batsugun, released by Psikyo. The differences between this set and the first are not widely documented, and may involve minor adjustments to the game's code or hardware, perhaps related to region-specific releases or minor bug fixes.  The core gameplay would likely remain the same.  Further details about the specific alterations between set 1 and set 2 of Batsugun are scarce in readily available information.

Batsugun (set 2)

Batman Part 2