I had a much easier time finding a flow in this version. I'm not sure if this is as a result of changes you made or my own previous play experience though. I feel like you have a solid puzzle foundation you could easily start extending for longer play, or leave as is depending on your end goal.
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Thank you. I agree its a good foundation and I am pretty happy with it as a prototype.
I think it is probably you that is better. The only real mechanic change I made is removing the explicit move timer, and instead the tail speeds up its chase if you wait too long. I think that feels better than the move timer and also you can intentionally speed up the tail to see if the regenerated cells open up a new path. So I think its way better than the previous move timer.