Here's how I got there:
After exiting Mi's house: 2 down, then I went a lot to the right through the purple forest, through the vegetable place and through the smoky mushroom filled town. From there I went down the well, through the acid caves, into the purple temple (don't enter the first hole below yo meet). Once your out the other end of the temple, go left, then down a hole and go right or you'll be stuck. Once right go down again, and move right through the cemetery and over some hills and that flight of stairs with a tunnel in the middle, all the way to the right edge of the map (the one with machines). This is where you start having to do some hard bounces. Bounce yourself into the slant on the ceiling of the left exit until you can get yourself into the next floor, go up, then to the left once you get yourself through the hole int the pillar. From there, go into the secret passage and once your at the house, get on top of the woman's house, bounce once again into the slant on the left, then quickly bounce yourself on the roof and onto the ledge on the right, bounce on to the next one on the next screen and there you go!