he fought a real enemy, aplastic anemia. >> i had to go threw chemotherapy, which means i lost all myhair. i felt a little lonely because i had no friends with me. >> reporter: but much like a hero in one of his games, joshua beat the disease. beating aplastic anemia was a dream come true but it was make a wish that helped his dream come true. they toured a video game factory. >> i saw some stuff that i can't really tell you about. >> reporter: what he can tell me is he had a great time and he got to see the behind the scenes. >> when i got there it was an amazing experience. >> reporter: what was it like? >> it was amazing to see everyone there. >> it's neat because of the companies that help, to get away, to have a break from the illness and have a break from everything. >> reporter: make a wish made it happen like they do for so many other kids. >> then make a wish enters. one true wish. >> reporter: they did it for joshua and he'll never forget it. >> i have a very rare disease. most people probably won't get it. and it's such an exciting moment. >> reporter: reporting for abc new