The Seed

Hm...tried another 10 times...did not work out...so yeah...looking forwards for the kids version Thanks for the lovely help effort

Okay, I'm intrigued by the comments and would like to see this thru, but placing the seed is frustrating. I've viewed the vids and there's a slight difference between the level shown and the level I scanned from the caption.
The spot B steps to on the rail is to the left on the rail in my level. Small diff, but it stymies me. What's shown in vids just does not work. Oh, and ToA is obsolete now, so @delator77's advise is outdated.

Holy smokes, surprise ending, indeed!
Multiple tries to get the seed planted, worth it to see the result. However, once is enuff.
Thanks to @cimarronline for the assist. You came thru, again.