Note that this feedback is based on the build(s) available at the end of the jam.
C Sharp Sharp appears to be drawing inspiration from N++ , mimicing is minimalist colour palette, character presentation and level style.
Unfortunately, there are some issues with keyboard events being mishandled (holding space will cause the character to behave as though space is being pressed repeatedly), which effectively makes the first level uncompleteable. This problem is present in your other submission as well.
I also had to give +x permissions to the game executable for this one. Typically, for Windows based developers, this is difficult to have control over, but if you're on Linux or MacOS, setting executable permissions with the "chmod" command on the game binary before zipping up the files will make sure that that's good to go on users' computers after they download and extract them.
Without being able to play further, it's difficult to give meaningful feedback, but judging from the screenshots and my impression of the way the game is intended to handle, it's a good start.
Thanks for submitting and best of luck if you decide to continue development! :D