Sneaky Treasure Escape

[old biker]

Agent Sneaky is on a secret mission! This is one of the hideouts for the Sharkmen. There is said to be treasure hidden here somewhere and it's up to you to find it and escape before the Sharkmen find out!

Good luck

play

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

Please do not post a video walkthrough for 7 days.

[graywolf]

Used knifem key SD...have 3 marbles, 5 gems and a few clues; not seeing next step....
Ok...found the map (missed that!)..now have black key...
Out /w sneaky coin.

[tipper75]

I have the treasure

[Purp]

I have both the treasure and the sneaky coin.