thanks for playing! :)
I think the handles idea would be good! Though I still would keep some sort of "undo" function so you can completely erase a line you don't need.
Seeing the previous path might work too. Though I worry it might make it look too cluttered.
My concept was to keep it all "touch" based, that's why I never added "space" as a control. But later when I added the undo function & menus it was easier/faster to make those key controls. But I agree, space could easily be used.
Not all the levels are 3 seconds. Time increases dependent on difficulty.
Yeah, I was worried people might miss interrupt that. Could definitely change it to either of those! I wanted to add more functions than just drawing a line because that would get boring.
Hope that answers all your questions!