Cool game! For a Unity project, maybe [this tutorial](http://www.studica.com/blog/how-to-setup-github-with-unity-step-by-step-instructions) might be a good resource for open-sourcing your code?

Not so short, for a first jam! Maybe you could just add a simple ending text on the last, but hey! This is playable, there is a bunch of levels, so : good first entry :)
Don't forget the other fun part of the LD : try the others entries and rate them - you need ~20 rates at the end to get your notes, and rate others games is the best way to have it. ;)

Pretty good platformer! Character kinda looks like Hollow Knight. There could be something to indicate the end of the game but besides that this is still good for first jam.

nice effort :) game is simple, but controls work well, maybe consider having a delay on the dashes / going up to make it a bit more challenging to get through the levels?
Nice art too.
Not much of a second theme, but that's admitted to in the description.
Well done!