Quoted from Chosen_S:
tempest is long overdue for a full on bulletproof method, I know the monitor can be rebuilt and the board can be refurbd, but yes, sadly its hard to keep running on a regular basis. mine was fully gone through and brought back to life and has been kept alive for the last 4 years, its a dang miracle.
so tempest running on emulation and on an lcd monitor should look terrible, however, I bet the monitor settings can be adjusted to help the viewing experience be better than total crap
There is an FPGA replacement board for Tempest that is in what I would characterize as "late beta". It's a drop-in replacement for the game PCB, and has room on the SD card to also run Major Havoc and Omega Race. As for the monitor, there is actually a bit of a resurgence right now for color vectors, and there are enough aftermarket parts out there that you could build an entire vector monitor from them. That's if your 6100 is truly too far gone to be bulletproofed, which is pretty far. And yes, Tempest especially looks awful on an LCD. The black just isn't there, even with all kinds of crazy filters and stuff.
Back to the topic at hand:
As one of those hardcore arcade guys that are all enraged, I am actually ecstatic to see these games show up.
Nothing breaks my heart more than seeing ads on Craigslist for nice Pac Man or Centipede cabinets that have been gutted and then fitted with a cheap JAMMA harness, a cheap LCD screen and a 60-in-1 game board being peddled for $1500.00. If the same customer base can go to Walmart, Target or Gamestop and get a cabinet for a quarter of the price without destroying a recoverable game, then I am all for it.
To me, most multi-game arcade machines are in the exact same category as virtual pinball: Not entirely without value, but definitely not a substitute for the real thing.