Arrow keys or WASD to move. Space to open/close your inventory. Clicking your inventory (not the list) will ask you which item number you would like. Look in the list, e. g. 1 = Leather Jacket.
I tried to fix any bugs in @TheMapMakerOfficial 's project, shown in the remix note above. This works for the most part. If you don't see the stuff I remixed, just look at the code differences.
