Hey there,
this is not a graphic request, but a lua / scripting / programming request.
It does belong there:
viewforum.php?f=102
You might take a look at this list here:
https://docs.google.com/spreadsheets/d/ ... 1839908293
I mean to remember there is at least a developed system which allows the player to teleport between activated checkpoints (I can not find it through right now).
Otherwise a few hints:
Of course you can make requests for NPCs or whatever, but I'll tell you in advance to be fair. Such requests usually remain unfulfilled.
Where help is often given is when the request is relatively small in terms of effort or is a minor setting issue or when something already exists.
If you as the requestor already have a certain idea or can already deliver a few code snippets, you signal that you are really serious and you can get a little more help. For all other big things, you need to have really good know-how and very specific questions.
In your case, it looks like you unfortunately don't know that this is a programming request and the effort behind it is certainly not insignificant, as the level structure would have to be read out somehow. I'm not a coder, but if I were, I would assume that you would have to create a block of code (at least of course) for this and these blocks would then have to be lined up within the level for the minimap and would be invisible in the actual course of the game and only visible for the minimap. Perhaps something would have to be done here with the camera and a new viewport, but I'm just making assumptions here.
It should also be said here that these are my own perceptions. Maybe you'll be lucky and someone will be interested in developing something like this. But I wouldn't count on it, I would use what is already available, which is quite a lot.
So try to develop something with the existing NPCs or systems. The linked SMBX2 Custom Asset Index also has blocks and enemy/powerup npcs within other tabs, as you might see.