the puzzle piece you have to collect can be somewhat challenge to get to . the time manipulation be very unique and fun . the story be strange and dark , but interesting . the only thing I do not like be the game be a bit short and the optional star you can collect be extremely annoying . there be a star that require you to stand there for hour wait on something , literally do nothing . and if you minimize the game it take 10x longer . and if you wait too long the thing you be wait on disappear . another star can not be collect if you do something already , and it can not be undo . so you need to restart the game if you miss it .