Escape the Miniature Room

[MsInterpret]

Escape the Miniature Room by finding and using items to escape the room.

http://frogbresidence.kakurezato.com/dgame/game_2.html

Please use spoilers for hints and walkthroughs:
[spoiler=Title Here]Enter text here...[/spoiler]

Please do not post a video walkthrough for 7 days.

[Yvonne]

I have gotten pretty far on my own...but now I'm stuck...
Found another hint but the things that I am trying aren't working yet..
I have all my items still in inventory but only 2 that aren't used yet..1 I don't know where and for 1 I am missing an item
Gonna look for a hint elsewhere 'cause I don't wanna leave it hanging like this...
Okay, got the last numbercode but I needed help with that one...
It has something to do with the addition on the wall but not sure how...

684

I'm out now and this was a very nice game

[NannaJoy]

blue diamond, note & triangle on side of box near hammer

my number is different than Yvonne's. Aha! You can use the red box more than once.
What is behind the door?
Out
sure picky about painting that last one.