All of them and then drop on the fox. There’s 80. You jump higher and move faster the more leaves you collect, so you need to collect all/most of the lower ones first. Sorry if it’s too hard, I always a struggle with difficulty. It felt pretty good but I’ve played it so many times. Had a third ending planned for getting half of the leaves but ran out of time and steam. Lemme know if you manage to beat it, might have to tone it down if it’s too hard.