Yep, these Speed Runs are slightly more demanding than DH's Speed Run. More chances to mess up in the run, and bosses are slightly more difficult though not by much.

We just got our first darklight in like 20 runs or so today, putting us to 4 total or about 11%? According to our spreadsheet. We got 3 from the first 3 runs we did, which looking back on now, was pretty lucky.