VERTICAL ARCADE
These overlays (sometimes known as bezels) display art on top of the game you're playing. To use them, you need a PC or Raspberry Pi (or other compatible system) running some version of MAME and the associated game software, as well as a widescreen (16x9) monitor mounted vertically. To display the overlay while playing a game, download the artwork file for that game overlay (it must have the same filename as the game), place it in the Artwork folder within your MAME directory and launch the game. (For instance, the software for the game Magic Sword is called msword.zip, so it requires a file in the Artwork directory also called msword.zip.)
All overlays are 4K resolution (2160 x 3840), and listed dimensions are for the game screen, relative to a 4K vertical monitor. The actual game screen size will depend on the resolution of your monitor.
Most of the overlays include multiple presets that let you choose the size of the game screen, access a "dark" version designed to look more like a dark arcade, and sometimes other options. To choose a preset, press Tab while running the game to bring up the MAME menu, select Video Options, and select a preset from the list.
Some overlays include Curved presets designed with a curved screen port, to better simulate the look of a CRT monitor. These presets work best if you are using a geometry shader that adds a curved look to the game screen. For an optimal experience, you may need to adjust your shaders to match the curvature of the screen shape in the overlay. If you are not using a geometry shader, you are using a shader that adds a curved bezel, or if you prefer a rectangular screen port, choose a Straight preset where applicable.
Vampire Savior: World of Darkness is the second sequel to Darkstalkers, with the Western release of the game tying into White Wolf Publishing's World of Darkness franchise as a part of a short-lived collaboration between the company and Capcom (the game itself seems to have little connection to White Wolf's IP other than the general feel). The story's antagonist is Jedah Dohma, a nobleman from the demon world Makai, who seeks to rebuild it after it falls into chaos by luring in the Darkstalkers and stealing their souls. This naturally sets up a series of exciting battles, because video games! Vampire Savior contributes some new mechanics to the series, including the Damage Gauge System (similar to Killer Instinct, in which the winner of a round retains their current life total instead of resetting, with the added ability to recover some health), an ability called Advancing Guard that pushes opponents away, as well as a new energy gauge that powers special Dark Force attacks.
Movie tie-in games were relatively rare in 80s arcades, but the few that did surface often produced games that stand well on their own (Tron and Star Wars being excellent examples). Though certainly less well-known, Capcom's Willow belongs in that list as well, as a platformer with a surprising amount of depth as well as heart. Willow follows the events of the 1988 Ron Howard movie, in which diminutive Willow Ufgood must protect baby Elora from the evil witch queen Bavmorda, while teaming up with warrior Madmartigan along the way. The gameplay is similar in many ways to the Ghosts 'n Goblins series, with the addition of more complex levels, a more reasonable difficulty level and the ability to buy upgrades from roving vendors, which give you a variety of new abilities in addition to allowing you to restore your health.
Having established both the Street Fighter series and two Marvel-based fighting games, Capcom made the popular decision to cross over the two universes, creating what would become the long-running Marvel vs. Capcom franchise. X-Men vs. Street Fighter allows each player to choose two fighters, who can trade off during combat and join forces for special attacks, and includes features from Capcom's other Marvel games such as super jumps, in-air combos and the Hyper Combo Gauge for supercharged attacks.
X-Men: Children of the Atom was the first Capcom fighting game to use Marvel characters, and it set the stage for the popular and long-running Marvel vs. Capcom series. Released at the time of the X-Men animated series, the game has much in common with mid-90s Capcom fighters Super Street Fighter II Turbo and Darkstalkers. Children of the Atom adds X-Abilities, powered by the multi-level X-Gauge, as well as air combos and super jumps. The game's storyline concerns a plan by Magneto disrupt the Earth's electromagnetic field and bring mutants into power, with other evil mutants aligning with Magneto and the X-Men teaming up to stop them. (As with most Marvel-related fighting games, it's never quite explained why the X-Men are fighting each other, but it's a great way to answer those "Who would win in a fight?" questions.)