I like your game so much honestly it reminded me of playing Mario and stuff in my childhood !! Keep it up 

I really liked your game! Looks like I was playing Master System in the early 90’s! Audio - The song you chose by the artist Joshua McLean fits perfectly with your game, you just need to turn the BGM volume down a little. Visuals - The graphics could all be in the same pixel aspect ratio, mainly changing the chests and walls. Interface/Playability - Definitely the game would go much better without having to use the mouse, leaving the fun facts more free, perhaps in an interaction with some keyboard key. But the fun facts are pretty cool (they could just make the text a little smaller too). Main char - The main character could have something from a tree like a branch on his head and a name like “Duckree”. Level Design - The level design has a very nice progression and the last stage was really well done with the possibility of acting on robots. It was a very Sega experience - I loved it! Congratulations!