Crypt of the Necrodancer Aria low%
So uh yeah, I did Aria low percent or low% now. For those unfamiliar, you are not allowed to pick up any items or use (most) shrines. This means you are locked to a 1 damage dagger with only a potion to let you make mistakes with. However this was done without amplified, which means that there is no zone 5. Syncrony was enabled though.
I also tried story mode with amplified enabled for the other achiement, but died at aria 3-1 after almost an hour long run. The nocturna was less than 15 minutes, but as story mode doesn't count other achiements I didn't get it on steam.
Anyway here are the timestamps for all levels:
4-1 0:00
4-2 1:02
4-3 2:00
Death metal 4 3:29
3-1 4:16
3-2 5:34
3-3 5:59
Deep blues 3 6:37
2-1 7:07
2-2 7:51
2-3 9:46
Coral riff 2 10:16
1-1 11:21
1-2 12:25
1-3 13:43
??? (Final boss) 15:00