I think as a game with an educational message, this does a good job! Grafting is a huge part of what enables the agricultural industry to thrive, and this communicates the core of how it works. So in terms of triadic game design, I think both its meaning and reality are already pretty clear. Like others, I had some bugs, though in case the bugs are different I’ll lay them out here: for some reason after completing the first task (which worked just fine), every time I picked up a box and put it down it would increase in length by about two-fold and decrease in thickness by roughly the same. The table also no longer registered the boxes as being placed on it, and the point that boxes would be dropped from had shifted pretty far left of the camera. For the sake of reproducibility, I’ll say that leading up to this bug, I had cut two different plants without having picked the first box up (not sure if that’s at all related, but you would know better than I would). In any case, I think you’re working with a solid concept! The main thing is just implementation, and perhaps expanding the game a little to better motivate the player to engage with it if you have the bandwidth.