Hey guys, I have just uploaded a complete Nebulus playthrough on YouTube. I guess it is the only one that shows all sixteen stages, both missions. If You still have problems with a stage go ahead and check how to beat it
[ Show youtube player ]
I didn't use any cheats or trainers so You can watch and try yourself to beat the game, it is actually pretty easy when You get the hang of things.
Cheers all, Corwin.