> Okay but ladder games don't really exist as a genre today, assuming people actually
> referred to these types of games as 'ladder games' which I've never heard before.
> People aren't saying Space Panic is the first ladder game. They are saying it's the
> first platform game, and that's just wrong.
When the game came out, it was classified as a climbing game or a ladder one as shown on this page from Steve Bloom's "Video Invaders" (1982).
People categorize things from different perspectives and knowledge as this thread showed. So, you shouldn't stress over someone categorizing a game using a different point of view. Don't let the Nintendo fanboyism take the worst of you, it doesn't have to be first at anything. Usually what defines something new isn't always the first in some subjective category, they are improved across later iterations. In other words, things don't just pull out from thin air. There will always be a first, even if it isn't a known one by newer generations.