Wow, this has been up for 6 hours and no one has said Twilight Zone yet? I'm shocked...

I'd also have to put in a mention for the much-maligned Road Show... mode selection is constrained but can be very important (affects bonus which can be huge, and you can't play two of the same color in a row, so choose wisely...). And 18 mostly distinct modes, gotta love it.

Not the pops necessarily, but there are other ways of "selecting" modes. Let's say you were about to start multiball on TZ, and you notice that the "Lite Gumball" door panel is currently lit. You decide that you want to bring Town Square Madness into the multiball, so you shoot the piano to collect Lite Gumball, and then shoot the left ramp-right ramp-piano combo to start Town Square Madness before starting multiball. Does that count as "selecting a mode"? Seems like it deserves at least partial credit. If the only way to start modes was the Slot Machine, that would be a different story.