Subterrainean Wall Glitch 1:
Be Weavel, and go to the cloak, and stand at the right edge while under the pillar. Jump and go in HalfTurret, and you'll be behind the cracked wall.
Subterrainean Wall Glitch 2:
Be Weavel, and go to the Cloak room. Theres a diamond in there. Go to the right side, and walk up the wall. Once up the wall and on the diamond, lay your HalfTurret off the edge so it will lock you. It is best for begginers. Anyway, it keeps you on the diamond so you wont fall. Turn so the wall is on your right, and walk right towards the wall. You will fall through the diamond, and be inside it.