making the player a little different shade then the level probably would help the player to know where they are at first although once you start moving I never lost sight of where I was. I was able to get to the green part on the bottom of the screen and made it up so it changed colours to dark green not sure if that was you win condition since nothing happened and I was stuck down there lol.
You copy pasted the wrong game jam into your desc though it says Jam 118 Game Jam in a virtual machine. Other then that stuff good job on your game
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the light green is the top and dark green is the rest. If you reach the light green, all the sides get turned to light green . If it doesnt, its a bug that only happens on the web build
also, i noticed that i wrote 118 instead of 128, edited the description, but instead of changing it to 128, i changed it from 118 to 118