There used to be a spreadsheet going around with spawn times. I never found the original, but instead had this screenshot:

Took the liberty of updating the times because there's some new stages added and realised that I didn't get the same times on some stages like on the sheet above. I found out that those times may have been timed with 1X speed (didn't confirm). Apart from that, the ordering based on time wasn't the same from what I found/timed.

Anyways, here's a new sheet with 2X times for all the current combat notes in IS2: https://docs.google.com/spreadsheets/d/1E2eqFtnnmXm99KBF6ZRQ4mStjV7oPdG9DYtogvOLMps/edit?usp=sharing

Happy speedrunning, friends!

Thanks Spiefie!

Feel free to add this to the Guides section.