An Explosion?

Then Kaz and ray met up on the top of a building.

Ray: A bow seriously dude.

Kaz: It's the only thing at my house. A sword, you couldn't be more creative?

Ray: Shut up!

BOOOOOOOM CRASH *EXPLOSION*

Kaz: Finally, we have something we can use our new powers on!

Ray: How do you even use a bow at super speed?

Kaz: Watch me, bitch!

They run over at full speed (mach 1)