I'm sure everyone has some kool ways to curve and launch bakugan, but a simple way to launch your bakugan is a BAKUCLIP! it's very simple and is similar with the finger ramp roll(which always lands on your gate cards if it is at the right speed), never on your opponents but away from the gate cards. So to use your bakuclip move the magnet part of your bakugan to one of the holes of the bakuclip(the small ones not the big one on the back) then line up your bakugan with your gate and simply push the bakugan and it should land on your gate card. I found this out when my brother was playing with one of his transformers missle launchers that use pressure to launch the missle, so i used this way in a bakuclip and a bakugan marble.