WARNING: I think there is a max limit of the number of keys you can hold at 1 time, so if you collect another it doesn't add to the total, or there is some sort of glitch. In my first attempt of collecting everything in the house, I was missing 3 keys, which I think is because I did the attic first. If you want to collect everything, DO THE ATTIC LAST! I just restarted, and in 50 minutes I 100% completed the house, by going in the attic last. + This comment if it helped.
ATTENTION: I'm working on some updates as I am typing this comment! Prepare yourself for a completely new youth center, inspirational signs to keep you motivated as you ski down the slopes, and a new pair of invisible skis! All that and much more to come!
 "Pingy the Ping Idle RPG"){kind=icon}
 "Unity Texture Test"){kind=icon}
 "I Wanna Win!"){kind=icon}
 "Trollbanana"){kind=icon}
 "Learn to Fly 2"){kind=icon}
 "Clarence's Big Chance"){kind=icon}
 "Testing Unity"){kind=icon}
 "Quit Smoking"){kind=icon}
 "unity"){kind=icon}
 "Super Ski Adventure"){kind=icon}
 "The World of Leonard"){kind=icon}
 "Super Impossible Quiz"){kind=icon}