excellent challenge lillie!
although - i'm glad i didn't read your spoiler first, i did it differently
i downloaded it a few days ago and had completely forgot that you'd said we'd need fast fingers, so it never occurred to me i could beat the first boulder after running round with the box, i stopped before the ice and let the next boulder run past, pushed the box back into the middle of the island and then when that boulder had stopped i pushed it into the water giving me lots more time
then on the light blue and white buttons, i don't think i'd have ever found your solution in a million years

after pushing the box to stop the middle boulder, i pushed the box around and down to 2 spaces left of the boulder, pushed the boulder left, collected all the coins, then pushed the boulder up and left through the teleporters, followed it and went through the bottom green teleporter out onto the white button and then pushed the boulder through the other teleporter onto the light blue button, then i followed the box through and went through the top teleporter pushing the box onto the white button.
still, all roads lead to berlin!!
