Heli Attack 3/Zone 2-2

As Zone 2-1 i do Hyper jump-grenading and when my grenades are finished, Hyper jump-machinegunning the remaining helis... there are 10 helis this time so you will use machine gun more(if you want to of course, i can't force you to do exactly as i say :D ). Also there is another secret free weapon, GooGun, pls check my walkthrough video for the location...