As you followed April down the sewers you started to get used to the surroundings. Then you started to here arguing..... But from where, none of your friends were arguing....

"Hey guys... Do you here arguing or is that just me? " you ask.

"Oh great.. There arguing" April says in a duel tone.

When you finally got there you saw 4 turtle mutants each wearing a different color type of mask and with different weapons. 

One of them, with a red mask was chasing one in an orange mask while shouting insults at him.  The one with the purple mask was typing on a calculator and seemed to be copying it down onto his phone.  And the last one with the blue mask had an awkward and nervous look on his face.

Casey was cracking up and said "great way to introduce yourselfs"

While Kari just face palmed.  April made an attempt to introduce them. "The one with the blue mask is Leonardo but you can call him Leo, the one with the purple mask is Donatello, you can call him Donnie.  That one with the orange mask is Michelangelo but you can call him Mikey.  And that last one is Rapheal but you can call him Raph.