The age-break machine? Yep, it's been around a bit -- I've heard it doesn't appear until you have a level 100 pet (not sure if that's true). Basically you feed it dupes of that same pet, and get 1 extra level per dupe (up to 125).

Its the pet age breaker, not a mutation machine

Whats it do

Makes ur pet go over age 100 up to 125