Roll & Push

Let's push the snowball to start this adventure, press and drag the virtual joystick to push the snowball, the bigger and bigger, release the snowball and roll out to defeat the enemies along the way,
You can roll any snowball size you want, but you need to be careful about enemies and their weapons and anything else that will bother you with snowballing.
How big of a snowball can you build and make it through the adventure?