Electric spark

1. Start Lifetime > Random Between Two Contains > 2 / 5 세팅
       Start Speed > Random Between Two Contains > 20 / 30 세팅
       Start Size > Random Between Two Contains > 0.01 / 0.1 세팅
2. Emission > Rate over Time > 0
       Emission > Bursts > Count > 30
3. Shape > Shape > Sphere
4. Noise 체크
       Noise > Strength > 9
       Noise > Frequency > 4.0
       Noise > Quality > Low ( 1D )
5. Trails 체크
       Trails > Lifetime > 0.5
       Trails > Strength > 3
       Trails > Frequency > 2.3
6. Renderer > Material > Sprites-Default