I really loved this... until the end, that is. So, there's a secret ending that gets revealed in the post-game stuff, which is all well and great, except... it's super broken. Outside of your first run of the levels, you can't activate the secrets, except for Yellow and Orange. Those two work properly, while the others do not.

Really neat! The yellow world seems to have bugged for me (I couldn't place the rope on the well), and I spent more time than I should looking for the chest key (It blended in with the cart) so 4 stars instead of 5.

very cool exploration game