You can reach every part of the level with the power up you obtain. Unless you are reffering to the path at the top of the big fall which is just the jumping tutorial at the beggining.
i mean the 2 rooms with the arrow and the miniature door. or was that just to tell me that you have to use the key to open the door? if, starting from the main hub savepoint you go straight left till the end, u find one room. for the other one you go down one room and then all the way to the left
