Though I open so many thing with triangle screws, I once filed down a small flathead screwdriver to semi lock into the shape.. @_@Dunno where that went to though.
4/8/09- came back from camp today. checked warehouse and bought a haos naga 640g. it reminds me of kanye west for some reason.. but yeah i really like it.
. The screwdriver slips a lot, so I would suggest if you're going to be disassembling many bakugan, find the real screwdriver.there is none. after long long long checkng on the internet i realised triangle screws are the tamper resistant ones.