I would make it a little easier for these events and people who are busy.
Hunting for eggs/keys should be a little easier and more common since some people cannot spend long hours exploring to get things.
I think it would also be nice to have some more games - the flash ones don't actually give you anything and the quests are not actually worth doing.
It seems as though the only way to make any tu is to get seriously lucky with a rare creatu hatch.