Ok so this seems to be a tricky Achievment for some, but to be honest its fairly easy (dont know how i got it on my first try :) lets start Ok lets begin! this achievment is earnable in the first two rooms :) (sorry for crappy graphics my laptop sucks :( ok first thing your going to want to do is ring the buzzer for the door (just to speed things up)

next what your going to want to do is collect the coins in the first room, do not enter the second room!

(dont forget the coin in the vending machine, its in the return coin slot at the top) by now the room should be open, enter it but dont go all the way in, stay by the door and collect the coins right behing the door

now return to the first room! go to the vending machine and purchase yourself a nice fresh achievment (click the orange soda button then in the soda tray should come a soda, click the soda and their should be your achievment, thanks for reading!