Another way is, that the emulator dice supports his own parameters starting games:
path_to_dice\dice.exe name_of_game
antiaircraft
attack
breakout
cleansweep
crashnscore
crossfire
gotcha
jetfighter
hiway
indy4
pinpong
pong
pongdoubles
quadrapong
rebound
sharkjaws
spacerace
steeplechase
stuntcycle
tvbasketball
wipeout
So you can create links to dice.exe and set as target the desired game as a parameter:
path_to_dice\dice.exe pong
in AM (attractmode)
Executable : cmd
Command Arguments : /c "[romfilename]"
Rom Path(s) : path_to_your_links
Rom Extension(s) : .lnk