Difficult, challenging, but not (too) frustrating. Great level design, great mechanics. Definitely a game worth playing. One suggestion: a world map, so it's easier to find the challenge areas. Thanks Ferociter!
This is a good game, and it is made even better by the tree games preceding it. And all the others are made better by this game. This is an amazing synergy, can't wait for the next game ... no pressure ;P
the game is stuck on a 3-day old save. whatever changes I do. However many time I manually save. Next time I load the game I am back to the state of my game 3 days ago. It's like being in Groundhog Day...