Hello there! We just played your game and it was pretty good! The visuals are great and the movement is VERY fluid, which is quite important to have when it comes to platformers. You guys also did a great job with the music! :D
What you have here is a solid base game that can really be improved upon. The current mechanics are already great. All that it needs are the other formalities like a main menu, settings & credits tab, basic tutorials to teach the game to new players, more sound effect while moving and animations while transitioning or restarting etc.
Great job! Looking forward to seeing more games from you! :D