Windows 7/Chrome 4.1
Reproducible
Similar to the bug at The Entrance, there is a spot close to the "Level 2 East" Signpost where there is a ledge that overlooks a Beryl Rock spawning point. If you jump from the right to the left you can slip between the barrier that represents the wall and the barrier that represents the ledge. It's easier to escape this pit of doom since the actual map is lower to the ground than at The Entrance.