Supersonic Locust
I tried like 10 times and I came to the conclusion there is a problem in the programming. I know it works for some, but I definitely can't go inside the house again once I get the key. It absolutely doesn't work. I clicked everywhere, looked for a green arrow, nothing. And I saw I was not the only one who got the problem. Too bad, that was a good beginning, the programming is not yet flawless. But you're young ! So consider this as an 8. You still have to learn. Too bad...