Gravity Gun Achievement in Rain on Your Parade
Beat First Person Cloud without picking up any ammo.
How to unlock Gravity GunThis can only be completed on New Game Plus. Complete the DreamQuack level and then return to your home to find an arcade machine; play it to begin the FPC level. Currently, this is glitched so that if you quit out of the level immediately your achievement will pop. The proper way to complete this is to use one snowball to freeze a Hooman and then use your tornado to throw them at other Hoomans, enemies, and generators to finish the level. Just make sure to not accidentally pick up any ammo (snowballs).