You will need to find the climbing belt coin... it is green
Once traded with the vending machine, you can use up or down cursor to start climbing... left and right cursor then climb sideways or combining them with up or down you can even climb diagonally
Yes, progress is stored when you close the browser and come back later, unless you opened the page in an incognito tab... even if you didn't donate. Donations only allow you to disable perma-death.
