@Romano G, Big thank you for the heads up!

I'm assuming that red-colored but small-typed "(Change level)" link to the lower right, behind the Change level alert in front - was what you clicked on to see this option.

Yes, discovered it while doing the daily workout.

BUG REPORT: This worked for me the first time I tried it, on Pan Girl, but didn't work on the next games I tried, Bass Detective and Stereohead.

From within the game page, I opened up the Change Level window, chose the already-passed level in the pop-up menu, clicked the Update button (the button then did a little update animation as you'd expect when it works OK), then dismissed the Change Level window. Nothing happened, my level was still my current level.

Then I went back to Pan Girl, where it worked OK the first time, did the same sequence of steps as above to reset it to my current level, and, again, nothing happened.

MacOS, Big Sur, all browsers.

WORKAROUND: Turns out refreshing the page of the game will show the change of level you just attempted. Still, this needs to be fixed.

Thank you for the details. Problem should be fixed by now.

why would one choose to do this?

Nice! @ARUNA Abrams , when you come back to a game after a while, it allows you to warm up on easier level, that you have to pass once more!

What happens to SPI when you downgrade❓ Do you lose it? or you don't get any until you reach again the level you downgraded from❓

@Max - Black Virgin No loss of SPI, just not likely to beat your top 3 scores replaying lower levels, so not going gain SPI with this. Plus, you can change it back to your current level anytime.

I like that now have the option to replay lower levels with sound samples that I'm really bad at and not lose all lives on the first 3 or 4 stages

@ARUNA Abrams asked, "why would one choose to do this?" (why go to a previously passed level?)

From a morale point-of-view, If you're stalling at your current level and questioning your abilities (am I really improving?), revisiting an earlier level, if easier the second time through, will demonstrate that you have indeed improved.

I had a different, but seemingly related experience after laying off EQ Cheetah for months, then starting up again. I found I was much improved (no doubt, from still doing the EQ training of the other EQ games I played regularly during that time.)

That said, I noticed that some of the games seemingly have the same sonic content no matter what level you’re at - as you advance through levels, you just get a smaller range to select with (the answer band gets thinner horizontally - thus you need to be more accurate where you click.) So revisiting these levels would not have a sonic ear training benefit, it’s just “grading” you more leniently (games I’m talking about: PeakMaster, Kit Cut, EQ Cheetah, Bass Detective, Pan Girl, Stereohead, Balance Memory )

Other games, when at lower ToneGym levels, test you on comparing sounds with each other. The difference in compared sounds is less subtle at the lower levels, and thus easier. I think it’s good to try those again, just to keep your ear in shape, and hopefully be even better at recognizing the difference between the sounds - more so than you could the first time through (perhaps you guessed a bit - or a lot - when playing the level originally.) Games I’m talking about: EQ Knight, Filter Expert, Reverb Wizard, Distorted Reality, Delay Control, DB King, Dr. Compressor, and Compressionist.

So the benefit is there, but more so for the second category of games I listed above. But here's the question: will going back only 10 levels max be easy enough to demonstrate improvement?? :-)

Thanks @Romano G ! it makes sense of course!