Angry Dog Escape

[OscarW]

You are trapped in your friend’s backyard. The door is locked, so you can’t get back in the house. There is also some angry dog. Find a way to survive and get back in the house.

Play Here

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

Please do not post a video walkthrough for 7 days.

[Kzin]

Different and really angry dog.

[tipper75]

I won, but I would not be there as

[graywolf]

Used knife; black key became stuck on screen, but still usable.

Top of trampoline; back wall view.

Now have colour code and out.
The 'edit' and key was strange...