Do I have to print the ticket(s) in A4 format and in colour?
That is not necessary, but if you print, do so on A4 size, otherwise the barcode is too small to scan. But we prefer you to scan your ticket from your phone (saves paper!). Please note that the internet connection is not always very stable. We advise you to download your ticket on your phone and make a screenshot before you go to HARDFEST, so you always have your digital ticket at hand. Also make sure that the brightness of your screen is on maximum.