One way I could determine this is by backwards engineering a perfect score. Luckily, perfect scores are so rare Gaijin has a page just for this. And here's a result pertinent to our interests, courtesy of Hannes Preiss: 68,506,715 points.
Now, how does the scoring system in Bit.Trip.Beat work?
Scoring for each beat is determined by two factors:
- The increamental beat value
- Start at 100 (in Normal mode, the only mode available on the Wii)
- First ten beats hit are worth 100 each (8th beat in a row: 100 points).
- Every beat in a row after the 10th are worth 100 (in Normal, 50 in Easy) plus the combo length (15th beat in a row: 115 points).
- Reset after every mistake.
- The multiplier
- The multiplier is always 1 in Hyper and Nether; 80 hits get you in Mega
- For every 15 (8 in Easy) hits, the multiplier increments.
What we now need to do is use these rules to see how many beats in a row give that score. According to my calculations* (which might be off!), that's around 1,424 beats. For now, the answer is no.
In other news, the top score for Descent is 128,089,655 — although you can miss beats in this and the Growth boss without losing the Perfect status. That's an excess of 1,750 beats, more than enough to get the achievement.
* The one thing that spreadsheet doesn't count is challenges. Thus, lookups on the table aren't perfect; you can compare numbers with the perfect run video to see where they don't match and why; they're accurate up to the first stage.