I found this glitch in Gray Hammer.
https://i40.tinypic.com/9jotc6.jpg
1)Go in front of the box
https://i44.tinypic.com/2hdqv7s.jpg
2)Now sprint
https://i41.tinypic.com/volph0.jpg
And you are in
Now the enemies can't see you,because you are in.LOOK
https://i40.tinypic.com/sfkzuu.jpg
Press thanks if this helped ;) :P