Took some advice!

I just made an update which should mitigate the issues people have brought to my attention, involving the controls. There are still some places I would prefer to round out, but this is a good start.

I want to confine the vacuum to grid motions too, which is partially implemented; but not completely. We'll get to it!

Thank you, as always, to everyone who has been kind enough to play and comment on this game. You're all a huge help!