I finished the game and I enjoyed it a lot, I liked the aesthetics of the game and Gregory's humor. I just wanted to finish it so Gregory would stop bothering me XD I read above that someone said the checkpoint system did not work well, it does not, it works perfectly, perhaps it happened that he could not solve any of the puzzles in order to advance. Very good game, keep it up Sepi !!!
P.D:
I couldn't find all the turtles :(