Unfortunately, the dev times for whole game and secret levels are unobtainable, which super sucks. This is because two levels weren't given a Dev time, my bad, and for one, the mechanics are acting up. I don't understand it, I'll have to look into it.

My unfortunate solution is temporarily removing these achievements, so that you guys can still 100% it. This isn't very satisfying, and I apologise. Shout out to Cutty Flame though, what a champion.