This is one of the Spanish games from Ventamatic marketed in Britain through Unique. Jump actually sees a somewhat inappropriate name for this particular game - Climb or fall might have been more accurate. This is actually a Spectrum version of the arcade machine game known as "Crazy Climber".
Your climber is standing at the bottom of a tower block six windows wide. He automatically climbs up the front door, and after that, you're on your own. The object is to get to the top. Unfortunately all the rooms are occupied by what the inlay refers to as apes but more resemble angry-looking versions of BBC deejay John Peel wearing cans on his head.
Windows which are blank are safe, especially if the blue blinds are down, but any window with an 'ape appearing is bad news. When fully aroused, this violent species actually hurls potted plants down on our doughty climber, plunging him to his death.
Halfway up, the building has no windows in the centre, forcing you to climb on either the left or the right side. Further up still there is a giant ape blocking your path. Once at the top a tune is played and you are taken to the foot of another block with inhabitants throwing different objects at you.