How could I make a survival game with N64 Graphics? And how would you animate, or move that character with the Circle Pad? If you help, you'll get a follow and become an Official member of ▲Illuminati Studios▲.
...3D graphics are pretty advanced...Unless your willing to hours upon hours to get something small done. Plus 3D graphics with this coding language will look bad and/or have unfixible graphic bugs.
I'm sorry, but if you mean N64 graphics as in 3D graphics on the level of N64, those are pretty much impossible to do on SmileBASIC (for 3DS). Even 3D on the level of SNES is tough to get right. However, there are some engines that facilitate creating 3D worlds and models, such as the raycasting engine and P3D. I'd suggest either looking those up or reconsidering the graphics style...
It's a bit complicated. The engine is contained within the P3D_ENGINE program, so you should load that. Unlike the raycasting engine, it doesn't contain a guide on how to use it, although it still contains comments with basic documentation of the functions. You could read those and form an idea on how to use it. Sadly, I can't really help you with it, because I haven't used it myself...