Here is a pic of me 15 or so years ago dressed as Gohan (Yes! GOHAN! NOT GOKU DAMMIT!) Took lots of hair gel and laying upside down to get my hair to stand up.... my friend is Tenchi Muyo (His mom did his costume parts; amazing job she did!).
I personally use a Saitek P2900 Wireless for emulators. I think I paid $30 for it WAY back in the day. It works great still, but it does use RF as bluetooth didn't exist when I got it.