Can Jet Set Willy be completed?

Was there not an issue after entering 'the attic' that stopped the game from being completed?

Unfortunately it was a well known bug. I think it was fixed on most versions but I don't know if it ever was fixed on the MSX version.

Thank you mentioning this Manuel!

Not sure if I tried to get the second object in "Out on a Limb" back in time. Judging from the video, it looks a bit like that certain platform could nearly be reached at, but not really. Not sure about this without trying.

There were some other impossible room(s) too on the Spectrum. Anyway if you managed to collect every possible object using some type-in "hack-loader" from some magazine and then walked to the bedroom, there was still the last object to be collected. It was the invinsible object, the pillow or something below that and it killed you. I don´t know if there is such a bug on MSX.

One easy (?) solution might to make a cheat program (may have been just a few pokes?), similar what was made for the Spectrum three decades ago. That program allowed the player to collect only one object in the bathroom and then just walk to the bed. Maybe some similar program could allow the player to walk to the bed, to see if there is a deadly object in the bed. But it is possible, that such program might disable the deadly object in the bed, if that was an collectable (but deadly) object? Another idea might be to make a game-spoiling cheat-mode, which would allow the player to walk and jump in the air while cheat is on or move 8 pixels to any eight direction while cheat is on. Such cheat must have some key which will turn the cheat ON/OFF during playing.

I would be interested to know all the bugs in MSX version. Same about bee-card version.

Someone drew my attention to the video. I was pretty sure that I tested every room before the game was released - a time consuming process, so I took another look. Indeed, there is a route to get the second object - it's just not the most obvious one suggested by the room layout.

Ha, that's the route I tried to do some time ago in OpenMSX when I found the other video mentioning incompleteableness - and couldn't complete the jump! It must be (nearly) pixel-precise.

[OT-ish]
Another incompleteable game on MSX: Boulder Dash II. In K-5 (the one where there is a boulder and a trough of brick wall to hold the boulder, and you need to run away from the fireflies) like so: (F=firefly, S=sand, R=spawn point, B=brick, *=boulder):

FFFFFFFFFFF
SSSSS*SSSSS
SSSSSRSSSSS
SSSSB BSSSS
SSSSBBBSSSS

EDIT: This level, except the 5-version (the link is for difficulty 1). Sorry, could not find an MSX video :evil: ...

EDIT2: The link with timepoint does not seem to work trough this forum .... jump to 12:00 to see the point I was trying to link to

There is one diamond too few (or the counter is one diamond too much) to complete the level!
[/OT-ish]

p.s. I just love to thread-hijack ;)