I have not seen "Vectrex Spike" in Japan yet, but I know vector scan CRTs were often used for 3D video games. Drawing vector graphics on vector scan display was much faster and easier than on raster scan display (normal one) in 80's. Of course 3DS's LCD is also raster scan display, but I guess SmileBASIC has enough potential for high speed vector graphics. I'm expecting completion of your work.