So, I scrapped a lot of plans and ideas, and focused more on making it "real enough" but adding lights and sounds that are fun for my son. It has a laser light and flashing, rgb LEDs . I got the sound for it from these forums. It has a little LCD display on the back that flashes a few cute things too. It is run by two arduinos and powered by a portable phone charger/battery to be rechargeable.
Here are some pictures. I will post the arduino sketch, parts list and some basics behind construction within a few days. Thank you for having this site as a resource. He LOVES it. I have to start working on mine now, which I will make as close to real as possible because I am not 4 and I will know the difference. Lol
Just saw that images need to be links, so when I get the images posted on my site today I will complete the post