alt Hacker NewsThe ability to subtract mass is definitely needed. All you can do is click “undo” and try again. You can drag the holes around too. Still pretty fun, I played 5 or 6 levels
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msephton • today at 7:47 PM
Tap the black hole and it gives you ability to add and remove.
I just pushed an update. Click on the hole and controls will appear. I think you'll enjoy the later levels (10+)