Really? Ill have to try it. However, I don't know whether that counts as collecting berries as you are only increasing the count not physically touching them.
yeah sure, it would be a bit tough, and hard to route if you think about it. But having all unlockables is a good idea, do that. Also, do you think the run would have to display that you have the unlockables? or just collect the 850 berries?
Probably I would say, collecting all the berries? Because just doing a run without a level one skip would be quite the same as the regular. Or you could also make it so you have to unlock the headband and leaves, like slowpoke said :/
I would really enjoy a category like that, I might submit an 100% run and see if Quo sees it and puts up another run for 100%.