For a gamejam, this is surprisingly good. But there's a few bugs in this, iron them out and release an update.
Thanks for your feeback :) What kind of bugs did you encounter? I'm currently already working on fixing and improving the game ^^
Like sometimes I'll get stuck at the edge of a platform.
Btw, what are you using for saving the progress? I'm pretty new to gamedev so I had this query.
Ok I'll take a look at that :)
I'm using systems, and one of them is a CheckpointSystem which keeps track of the reference of the last checkpoint. It has an accessible reference to the last checkpoint, and it gets updated everytime you enter a checkpoint trigger. In addition to that it also keeps track of every object that has yet to be used and updates their visiblity once you get teleported back to the last checkpoint.
Hopefully that helps!