List of PS1 Arcade ports?

[LEGENOARYNINLIA]

King of Fighters 94/95/96/97/98/99

Actually '94 was never ported to the Playstation.

[Mero]

Susume! Taisen Puzzle Dama

Picked this up for peanuts recently.

[Obiwanshinobi]

Williams Arcade's Greatest Hits:

Defender
Defender II
Joust
Robotron: 2084
Sinistar
Bubbles

[KAI]

Landmaker
Night Striker
Densha de Go! 1 and 2 were ported on PSX and they are some of the best games on that system.
Most of the games from the 90's bemani series are also on PSX (beatmania 1-6thMix/appends, Dance Dance Revolution 1-5th mix, Pop'n Music 1-6/Animelo, GUITARFREAKS 1-2nd Mix)

[PC Engine Fan X!]

Thunder Storm FX & Road Avenger (you might recall Data East's arcade laserdisc title by the name of Cobra Command, that was a staple in the American arcades back in 1984 + it'd set the arcade gamer back with each initial credit being an expensive 50 cents back in the day -- that's what the arcade operators/owners used to charge per credit in regards to those early 1980s arcade Laserdisc game titles, indeed).

Atari's Firefox arcade LD game, just a single credit fetched a whopping 75 cents back in 1984 -- I'd pony up the three quarters and a game session wouldn't last long anyways (especially if you chose the Hard or Unlimited difficulty settings). Damn those blasted radar trackings and homing missles. What was cool about the Atari upright Firefox dedicated cab (and deluxe sit-down cabs as well), it sported a built-in headphone jack + handy volume control to listen to the cool sound EFXs and music in private if so desired (a nice touch/luxury/highlight at a local arcade during that particular point in time).

PC Engine Fan X! ^_~

[Grey]

Galaxy fight and Road rage/Speed king were not mentioned. Both games are pretty rare and hard to find though.