What is the City Hole game, how does it work?

According to the introduction of TerranDroid, City Hole is a Action game on the Android platform. There is currently a 1.4 version released on Mar 16, 2020, you can see the details below.

Welcome to City Hole, where you become a giant black hole. Can you swallow the entire city? Devour all the buildings and eat the whole city. Be careful not to touch the GREEN seeds. Tomorrow is in your hand!

City Hole Features:
- Simple but addicting mechanics
- Beautiful graphics and smooth animations
- Realistic 3D physics

v2.7: Fixed some crash bugs of the game. Thanks.