Something that stood out to me in particular that really enhanced the experience was the sound design in this game. While the sound effects are short and simple, they really improve the feeling of interactivity. The game controls well too, in terms of movement and how the player looks around. The game is a little confusing at first, since the player is dropped in without much of an idea of what their goal is. A brief description of the controls alongside that wouldn't hurt, since it took me a quick second to figure out that Space was used to pick things up. Numbering the boxes would also help, unless it is intentional that the player is supposed to experiment with which box is the right one. Your game responds quickly to the player placing the cubes in the correct boxes, and alongside the jingle that plays, the game's inherit feedback is a good one. Aside from not knowing which box is which, the game doesn't prompt the player to do much other than walk around, picking objects up and guessing where to put them. Once each box is identified, the player only needs to walk back and forth. Adding some sort of challenge, like a time limit, would add a sense of urgency to the game. Everything in the game works as it should, and nothing about the game felt wrong with how it was implemented.