Cool game!
Building you own path is cool and I was suprised that there was voices. Having to defeat enemies and defend the cotton candy is fun.
Like the other comments have said. I think that being ably to carry more than one cotton candy and/or being able to walk through them would be good. I spent a lot of time having to throw them far and making a couple of highways with them. Also maybe it would have been good if each furnace has a limit to spawned cotton candy it can have at a time. At the last furnace there was like a sea of them.