Ancient Treasure, Secret Spider

I got stuck pretty hard on the oojamaflip puzzle. The game repeatedly pointed out with a parenthetical that the oojamaflip was relevant, but the encouraging words from Trala made it seem like a victorious status effect, rather than a puzzle to actively solve. And the solution, to use the gizmo, felt unclued. For most of the other inventory items, there's at least one other way to use it that gives you some clue about what it's for, but not the gizmo. The gizmo only works on the oojamaflip; only the gizmo does anything with the oojamaflip. Even after replaying, I have no clear idea how I was supposed to guess that. The gizmo and the oojamaflip seem to have nothing in particular in common; neither of them have any defined shape. I had to pray to get the hint to use the gizmo, which I then lawnmowered to solve the oojamaflip puzzle. I think the gizmo should do something somewhere else, to give me some kind of hint on what it could be good for, and/or one of the other items should do something with the oojamaflip, pointing me in the direction of the gizmo.

I also got stuck on the very last puzzle in the treasure room. I didn't realize that the "gold and jewels" were "gold" and "jewels," separably examinable. I'm not at all sure that this was a puzzle worth having. Making "treasure," "gold," and "jewels" synonymous would have let me just pick a treasure and move on.

More broadly, I think this game would benefit from bolding stuff that you can fly towards, and it would benefit from an HTML version that you could click on or tap on on mobile phones. (Dialog is great for that sort of thing!) For example, if the treasure description had said, "The platform is heaped with gold and jewels," I would have understood what to do.