The checkpoint thing is intentionally not in there because I wanted to mess with the player a little bit by having the NPC at the start annoy the player with the death counter, without it looking like its trying to annoy the player if that makes any sense. The jump timer is not meant to be so long, its a bug that came up that i just did not realise. I put it in the disclaimer at the top.
Thanks for the kind words also I do really appreciate it! :)