The Idea was good, the way you need to interact with the box is very good, but you not telling the player what should he/she do, or tell the story, like why he can't jump? I know that you can't jump because there is a thingy that stuck on his foot, add more music or Sfx will make your game more live.
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Thanks for your feedback. I will definitely add sound and a basic story to the game in the future. About not telling the player what he/she is supposed to do: I always liked games that throw the player directly into the game, without explaining the goal, but I guess it wasn't the right choise for a puzzle game.