The bottom of the tall tree things should be in the background so that you could walk underneath them if you're trapped
The music should also only change when it finishes, I don't like when the end of a song is cut off because I finished a level.
Needs a mute button and more content.
Then without a doubt I'd rate it 5/5.
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 "Realm of the Mad God"){kind=icon}
I agree myself with these points, the trees are probably the first thing I will fix.