how do I make map collision (Jelpi 3DS beta)

So I am porting Jelpi to the 3DS,I need some help on this

And do I load maps?

Help me out here, are out talking about this Pico-8 program https://www.lexaloffle.com/bbs/?tid=1810? If so, how do I get to see the Lua code? I think the maps, spites, and sounds are kind of specific to Pico-8 aren't they (assuming that is what you are even looking at). Might be able to translate LUA to SmileBasic if the code isn't too fancy. I tried downloading your code, and it looks like the background and sprite files were not included. Also, no goto loops please. Jumping into the middle of a function with goto is a bad idea and could cause strange behavior. If you want an infinite loop while true/wend is better. Instead of GOTO inside of the screenalert function, just call the start game function after you call the screenalert function.

Type in jelpi lost levels,zep probably meant users to load jelpi in pico 8 as a demo,and yes,that jelpi

oh wait I'll reupload it.