Layer Maze Part 3: Cheat the Time

Third, the hardest part of 3D Maze, where you can see only one layer of a 15x15x15 cube! Collect keys to open doors and reach exit. Stars give you time bonus final score.

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.

[HANFGARN]

This is a great game for all of us, who love to cheat, because the only way to win this puzzle game, is by cheating as much as you can.

So cheat away, and have fun!

http://www.newgrounds.com/portal/view/451592

Totally stuck on level 7.... hope you guys can...