thanks.
This is my first jam and after I started play testing other games I realized my mistake on the installer, I will remember this on my next jam.
I felt the same way about checkpoints for this game, that it's short already (I can breeze through in few minutes), but since I'm going to continue developing it, there will be a lot more content and then checkpoints are a justified. I just feel that some arbiturary point in space doesn't tell a good story and breaks the "illusion of game". This is why I want it to be a mechanic / skill of the character itself rather than dropping checkpoint marks everywhere.