I actually did a run where I didn't collect any leaves on the first part of the game, but that flopped when I realized the game expected you to collect 24. Would've been hilarious though if something was hidden for trying to avoid all the leaves.
Considering Z, Space Bar, and Enter advance the text that's sort of what I did to ensure I got through the text fast enough to try again. I may need to see the proper timing for the last jump before you get to the tea as it seems to ruin me due to the fear of getting ping ponged into a pit. Gotta see what's in store for keeping your parts on throughout the whole thing.
I think as an obstacle in a platforming game the eyeballs are fine. Harmless enemies that still cause a problem aren't too bad so long as they don't make it impossible to move. The amount that chase you, as well as the constant bouncing, may often times lead to moments where you can't move due to how many are bouncing into you.