A fun short game, but it has a couple of shortcomings that made me temporarily feel like it isn't working properly.
- the mouse no longer controls the camera after alt-tabbing or pressing esc to leave fullscreen; this can be fixed by entering the menu with esc -> clicking the 'X' button (might just be my browser, you never know with this kind of a bug)
- without any text, it is sometimes unclear what are the UI buttons going to do; e.g. I wasn't sure whether the aforementioned 'X' is going to close the game (might be useful when not playing fullscreen not in the browser), or close the menu; the same goes for the 'charges' of changing the player's size - by the time you can't change your size, the indicator of the number of charges is gone (maybe making it black on when used, and then making it flash or playing a sound effect or something when the player tries to resize themselves would make it more obvious that the resizing has a limited number of charges)
- the second puzzle containing a box is a bit janky; there are only a couple of frames to press E to interact with the button during a jump, and the timing is hard to get right (browser input delay?), I wasn't sure whether I should try jumping and pressing the button again or my solution was wrong; also, in this puzzle it is possible to get stuck under the box by walking under it when 'medium-sized', costing one resizing charge and therefore requiring a retry.
Overall, I still liked it and I'm going to rate it quite highly in the jam despite these nitpicks, which are expected with such a short development time; I'm just worried that some of these might make the voters think the game is broken, while it is in fact very much beatable.