Of course. I was referring to individual gem modes where you can't lose a ball. A great example is the gem from Rescue Multiball. The rulesheet is below. This seems nearly impossible to me to complete during the multiball (where you have to actually keep at least 2 balls in play). You have to cycle through every shot a minimum of three times and then bash the castle and enter the saucer at least 6 times before you can even light a mega-jackpot. Brutal.
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Rescue Multiball
During this multiball the following jackpot shots are lit: Spinner, Left Orbit, Winkie Drop Target, Ramp, Right Orbit, and Throne Room. For each of those shots, the first time you hit it will award a 1x jackpot. The second time will award a 2x jackpot. The third time will award and 3x jackpot. And hitting it after that will award 0.5x jackpot values until the end of the multiball or a super or mega jackpot is scored.
Once a 3x jackpot has been achieved for a shot it will light a corresponding R-E-S-C-U-E target letter on the castle mini-playfield (R – Spinner, E – Left Orbit, S – Winkie Drop Target, C – Ramp, U – Right Orbit, E – Throne Room) and enable Super Jackpot. To collect a super jackpot you need to hit at least one blinking RESCUE target and then get the castle doors to open and finally get the ball into the rescue saucer. You can stack the super jackpots by collecting multiple blinking rescue letters to get even more points (e.g. collect 3x jackpots at multiple locations and then get the super).
Note that once a super jackpot is collected all shots revert back to 1x so keep that in mind if you have good progress towards lighting the Rescue letters (e.g. 2x on the other jackpot shots). Fortunately a super jackpot does not unlight the rescue letters that have been collected.
Once all R-E-S-C-U-E letters have been lit (by collecting 3x jackpots from all jackpot shots and then hitting the R-E-S-C-U-E letter) a Mega Jackpot can be collected by getting a search orbit to castle door combo (i.e. hitting the search orbit and then immediately hitting the castle doors breaking through them and getting into the saucer behind).
Scoring a Mega Jackpot also immediately awards a Jewel towards SOTR.