It can be done, but it's probably not cost-effective, as it only earns you a few thousand Cherry during the brief time in Stage 2 that you otherwise would still be collecting Power. There's a couple of ways that can be mashed together to try and make it work. It is even possible to get to 128 before Letty. Note I said "possible". You gotta have Huge Good Luck to do so.
- Die at the very beginning, before collecting ANYTHING. This nets you an extra 13 power, for no cost whatsoever (assuming that you are already able to finish with 8 lives. Otherwise, your milage may vary.)
- Get a Border either as a result of Cirno's demise, or reach ~49,000 Cherry+ as a result, allowing you to auto-collect the power items for most of the second half of the stage.
This nets you extra power early, but it costs on higher difficulties: MarisaA (at least) can easily get a Border during Cirno's spellcard, which gets her an extra ~17,500 Cherry+ towards her next one if you let the Border run out before killing Cirno....which, coincidentally enough, allows her to get THREE Borders during Stage 1, with some change in the bank for the next stage (anywhere from 2,500-8,000), where earning the Border after Cirno only gets me two Borders, with 10,000 to 30,000 banked towards the next.
ReimuB can get the in-card Border as well - with a dash of luck. I don't know about the others, as those two fit me far better than any of the others. It may be that, for the other characters, getting the late Border combined with an early death would put you ahead on Cherry. I don't know.....
- Use a bomb at some point to auto-collect items that otherwise fall through the cracks.