Ok so when I was younger about nine yrs ago my dad rented a movie that I liked it was about this kid who founded this object with a white spherical shape in the middle and he put it on his body and transformed into an alien and he started fightng other aliens the boy was in his mid teenage yrs he was the blue alien thing that like died at the end of the movie and came back to life and killed this doctor alien which I thought was pretty cool.so I am dying to watch this movie again but I never knew the title of the movie so I need help on knowing the title of the movie

Maybe "The Guyver"?

Yes thank you so much imma rent it tomorrow

There was a second one made as well... happy viewing!