***SPOILER*** number of coins per floor: 1st: 3, 2nd: 3, 3rd: 2, 4th: 2
***BIGGER SPOILER*** all 10 coins -- 1st floor: chair, left big plant, kitchen window board -- 2nd floor: plant on the right, left toy on cupboard, next to tv stand -- 3rd floor: room corner right in front, left side under the handle -- 4th floor: right side next to antenna, very left under the rails
+ for everyone to see
@iluvpopcorn: had the same situation. go back to "park" area, and then a bit up and right. somewhere there is the way to new areas
sorry for bad english