Here's a fun little playthrough I did, where I tried to speed run classic mode.
This game is going to take at least 4 or so playthroughs, so I tried turning on cheats and ripping through.
Cheats DO NOT disable achievements, and I could complete this run in under 48 minutes. With some prep work/more memorizing, probably could have shaved 5 minutes of.
Check if out if you're into watching something like this. :)