Yes, very well indeed. But...
I feel you are playing totally different game compared to arcade.
You get so much advatage using keyboard/joystick.
Gameplay does not look like something you could ever do at arcade. The way and the speed the ball moves.
Looks totally different than play using original controls, trackball:
1. Acceleration: Looks like can accelerate much faster and change direction compared to trackball. Helps very much at small +3 sec monsters. If I'm spinning trackball one direction -takes little time to reverse the spinning of the trackball to go opposite direction. This does not seem to be the case with Gary's or Gavin's inps. Actually Gavin's acceleration and speed look even more impossible arcade-vise.
2. Speed: Looks like you can go faster than using trackball or arcade. Maybe it's possible to overpower arcade marble speed by using mame and keyboard sensitivity settings. Going all the time maximum speed looks to be the case here, at least.
I tell you...the jump at ultimate race...I do it too, but differently...I don't jump straight over...but going forward and slightly left. It's not even possible to do it way you do it...at arcade.
3. Difficulty: 20 tries in a row is not so much. I assume it's much more easy to learn keyboard/joystick compared to trackball.
Not only to learn, but after have learned keyboard/joystick, can get much much more often near personal maximum play.
Gary improved hes game from 150K to 170K in a relatively short time. It really takes loong time to do that at arcade. I also think it's not something everybody is even able to achieve, because you got to have so good cordination spinning the ball with both hands. Took me weeks/months to get from 150K to 170K....Think about the amount of money spend
4. Physicality: It's a contact sport really playing Marble at arcade. Completely different playing with keyboard.
If you ever seen somebody do 160K at arcade...you know the skill involved in that.
If you played the game at arcade, you know what I'm talking about.
Nevertheless, this is Mame, and there's not much I can do about you getting to use any kind of controls. My opinion is the game should be played only with trackball...but maybe I'm only one here doing so.
So I'll just say...Will not, and can not compete against those scores with trackball.
You are kinda competing in different category, different game. But I will surely watch your inps anyway, nice to see what would be possible in theory at arcade.
Man, I'm too retro, this has been boiling inside sometime

, sorry about the rant,
TJT, 170540 Arcade