|Description|| A game where you have to|
fill up the screen with balls.
|Appearance(s)||'Tumblr Survivor: Heroes vs. Villains'|
Filler is a challenge that originated in Tumblr Survivor: Heroes vs. Villains.
In Filler, your goal is simple: fill 2/3 of the level. To create a filler ball, press down. It will grow until you release the mouse button, it hits another filler ball, or a bouncing ball runs into it.
In Tumblr Survivor: Heroes vs. Villains it was used as a Reward Immunity Challenge.
| Tumblr Survivor: Heroes vs. Villains|