@jaskanwar singh is the passord there in the question only? itried ethical hacking in 1337 too but it did not work.
you are on the right track. just read again what is asked.
about the answer to the prototype build of space invaders had what creatures instead of invaders, i think it should be soldiers. see *www.spaceinvaders.de/
but soldiers does not fit into 8 across of the crossword.
so what are the answers to 8 and 4??
Dont you guys think that you are too openly discussing things and reducing your chances of winning ??? Try to do it independently and try not to spoil the fun of others !!!!