I'm in the middle of Xexyz on the NES. Its a great little actin platformer-shooter genre mix, with some RPG elements. Great graphics, great controls, not too difficult cuz u have a life bar and infinite continues on each level. But if u get game over u hafta redo all the stuff u just did in that level. Still not a big deal tho. They don't give u the passwords for each level tho which is strange, so I had to look those up to continue where I left off.
If ur looking for something new on the NES thats real good, check this one out. Its a semi obscure title but u can find it cheap and its common. If u like Blaster Master, u'll like this. It just wasn't as well-known probably cuz the title is so weird.