In the second level when you drop down the camera drops down aswell and it is too low for a time after that. I still don't really know what the different bars do. When the yellow was zero I died so it might be health or danger. You wrote that one of them was danger, shouldnt the danger be empty in the beginning and then increase if it is more danger? The red is usually the colour for health but I do not think that it is health now. The red healthbar did only decrease when I walked on the purple slime.
The game was not too hard which was good. You moved a little when you don't fly but I guess that is because whatever you are holding is heavy. The jumping was hard in the beginning, you should maybe increase the jumpforce. The game was pretty fun but you should add some levels and like you said in the description music and sound effects because that could really make the game shine.