My record was 20 seconds, could solve 4x4s, 5x5s, 6x6s, 7x7s, 8x8s, 2x2s, 2x2x4s, void cube, pyraminxs or pyramid cubes lol. I was a legend back in 6th grade. I miss the days of relaxing by scrambling all of them and seeing how long it took me to solve them all, i should try and get back into it
Edit: i could also solve mirror cubes
Edit2: i could also do the tile one where you fold the tiles (rubix magic i believe)