LogFAQs > #976810348

Sure maybe the requirements are light, but there's no way for me to know how light, and if I completely ignore them, there's a chance it'll bite me later, so I can't. They've made it a central goal of the gameplay.

You definitely can know how light the requirement is. you can see the piranha plants around the castle of each world when you get there, and how many seeds it will take to get rid of them.

Since the seeds are color-coded by world, you shouldnt need more seeds from a single world than it takes to get to the castle. Theyre only relevant to the world where you found them, so leaving some behind cant come back to haunt you later.