Quoted from Frippertron:
What are the rule differences between the EM and the SS? I forgot. Which is the better player? I know the EM commands a higher price due to rarity.
Here is something I saved that I ran across a long time ago, not sure of the source.
"The EM and SS Joker Pokers are like playing two completely different
games as far as the rulesets go. With the SS, the 5x bonus is
achieved by knocking down the appropriate lit target bank. With the
EM, double bonus is achieved when the ABC rollovers are scored and
unlit. The points scored per DT are different between the two styles
too. With the EM, the ace and king DTs are worth 1000pts., while all
others are worth 500pts. With the solid state, all DTs are worth
500pts., and once a bank is cleared and resets, the DTs are worth
5000pts. On the SS, you are always spotted a lit bonus, depending on
the ball in play (ie. ball 1 spots 1000, ball 2 spots 2000, etc.
during a 5 ball game). With the EM, you are never spotted a bonus.
There are a couple of other little nuances, but the biggest difference
is the resetting of the DTs. On the EM, the DTs won't reset during a
ball in play. So, once all of the DTs are down, the only thing left
to shoot for are the ABC rollovers for double bonus, the extra ball
target, or the special rollover, provided that these things haven't
been achieved yet. It makes the PF seem very vacant when all the
drops are down. However, with the SS, the ace, king, queen, and 10 /
jack DT banks reset once a specific bank is cleared (ie. once all
three queen DTs are dropped, they will reset, all four kings are down,
they reset, etc.)."