You don't hear about these things anywhere, not even on sites like Mobygames or StrategyWiki that have an otherwise complete list of official ports. But they're real I've got videos.
Also there's a list of difference between those versions and the better known Colecovision versions here, plus photos of the honestly really neat boxes here.
Here, a group of Wikipedians come to the consensus that the games were indeed real and not cancelled.
The biggest deal here, at least to me, is the fact that the DK Jr. port had its own exclusive level, seen seven minutes into the video I spoilered. It seems to be a kitchen where Mario bakes pies and drops them on Junior and also there are giant plungers and an even bigger eggbeater. It's weird and no one knows about it so I thought I'd let some people know about it.
Here, a group of Wikipedians come to the consensus that the games were indeed real and not cancelled.
The biggest deal here, at least to me, is the fact that the DK Jr. port had its own exclusive level, seen seven minutes into the video I spoilered. It seems to be a kitchen where Mario bakes pies and drops them on Junior and also there are giant plungers and an even bigger eggbeater. It's weird and no one knows about it so I thought I'd let some people know about it.