Zoo Keeper is great in MAME with the new X-Arcade joystick... except that the joystick slides on the little table I set it on then Zeke stalls because I end up moving the stick at the wrong angle. I need to figure out how to keep this thing stationery. Yes... need to build my own cabinet!
Berzerk and Frenzy work great on the stick also... can execute the angle fire much more easily than in the arcade.
Defender and Stargate... I need work on remembering the buttons but the default buttons are pretty well aligned with the original arcade games.
Frogger sucks... because the stick has pull back so a hard move results in the frog bouncing back in the opposite direction.
The track ball is awesome for Centipede and Millipede.. but bad for Crystal Castles unless I am willing to change the mouse pointer speed each time I play it.
Overall, a great purchase... and my daughters love it and they are pushing hard to have it put in a cabinet which I think needs to be the X-Arcade cabinet or something built from scratch. They can play two player Rampage for hours!
Nevertheless, I still plan on playing these games at the local retro arcades because there is still nothing like playing the original games in the original cabinets using the original controllers!