The GH Plot

Walkthrough:
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Level 1: (5 Keys total)
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1-Topleft of Key Count box
2-Bottom of Sun
3-Move 9 suns to the right wall, then try to move the 9th sun back, 
  it moves a different one to reveal key
4-Move costumed person thing. Move hidden panel to left of window
  (near bottom)
5-Press green button and get key under dogbee's paw as he flips. 
  Click window handle to escape

Level 2: (0 Keys total)
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I don't know how this one works exactly, but this will get you out: 
Click everything. Sun, treetop, tree trunk, body, button, fence, 
field, dot. There's a moveable turf on left side of field. It reveals
a button. Press button. Switch windows and wait. Go outside and hug 
a tree. The level will change eventually.

Level 3: (6 Keys total)
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1-Top of towels on shelf
2-Behind bottom (on right side) of sink stand
3-Behind white tile under sink
4-Move text box to left, click button. Use blue square to aim red dot in 
  bubble at red button behind panel. You can reset the bubble with the 
  green button.
5-Aim red dot in dotted line on tub
6-Click on Shortie, wait for door, key is on bottom right. Open door.

Level 4: (5 Keys total)
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1-Click balloon string so balloon floats away.
2-Panel of wood at foot of bed (big darkbrown square)
3-In "flat armchair" under window enter "TREETOP" into bottom section. 
  Press tab key. Very top-left of game screen.
4-Use red keypad to align panel. Try it for yourself. If you can't get 
  it, reset and then press each button in middle row once and bottom left 
  button twice.
5-Press small wooden button under lock on door. Key is in sun. 
  You can now unlock the lock.

Level 5: (1002+ Keys total)
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Click the keys.
????
Escape