Yes, there is command for the extra Next features. There has been various nice basic games for it for sure. Shpeed is such a nice example, which was a game done in basic.
What you have here, we have 28mhz cpu, which is 8x faster than the original, and you have various access to sprites, hardware scrolling, tiles etc. Tiles is much much faster than bitmap (and can been used simulation for dual playfield effects). There was also a a RPG game recently, which as im have heard done in basic.....
Micheal Ware just like assembly.
Im do not have tried Next basic yet. There is some interface to been used on Windows as well.