I guess you kinda improved on the game since last time you posted it in the thread, but only in some aspects.
The controls are still annoying, please just change J and L to Q and E already.
The "Restart from last checkpoint" doesn't seem to do anything except flicker the image between the game and the game over screen, I'm guessing you are just spawning the player straight where he died and if he died to a laser and he just gets stuck in an infinite death loop.
Speaking of lasers, please remove that leap of fate at the beginning.
You should make it so Z can skip all text, not only the intro.
You've got a nice gaimu here tho, just gotta fix it all up and it could be pretty good.