Avoid bullets, grow bigger and dominate. 

Tough Growth is a mindless 2D game about becoming the biggest shape among shapes, where every other shapes has only one desire: to shoot you to smithereens, dodge them like a ninja and get to destroy them god-like at the end. Also a game that's so simple that even computer illiterate people can play it.

Link: https://www.newgrounds.com/portal/view/702895