Nether Rift

"Congratulations! You just crossed into a new reality! These dimensional rifts were created long ago by the explosion of The Great Clock.Now you can use them to cross into and out of each reality!"

- Pollyx

A Nether Rift is a "gateway" between Ratchet's universe and the Netherverse. These unnatural rifts were formed eons ago by explosion of the Great Clock. These rifts allowed some Nethers to enter a parallel universe in limited numbers. Mr. Eye used such rifts to talk to Vendra Prog, whom was staying at the Meero Orphanage on planet Yerek.

After Pollyx upgraded Clank, Clank was able to find such rifts and enter the Netherverse.