Mesozoic Oswald, or Mesozoic Bunny is a Fan-Made antagonist in Abandoned: Discovery Island.
Mesozoic Oswald is a version of Dark Oswald, except that his textures are replaced with old stone textures, also, he has got multiple holes all over his body, and a rough texture, similar to a rock.
Mesozoic Oswald starts in Storage Room like most of Oswald's counterparts. He will be seen coming out from a crate. Later, he will head to The Roof, where the player can choose to watch him to slow him down, like The Face.
If Mesozoic Oswald enters to the office, if he's seen in the background of the office, next to the Treasure Island/Discovery Island sign, the player must shut off a camera to avoid Mesozoic Oswald's attack. But if he's seen in the left door, the player must hide under the desk to avoid him.
When moving, he can speak one of these quotes:
"Why do I still exist?"
"I was suppossed to be dead."
"Something says me that you aren't a good person, Jake."
"If you would give me my arms back..."
Shutting off the power will anyways work in him.
Mesozoic Oswald will start in Storage Room, then, he will head to: Staff Area, Meat Freezer, The Roof and The Office.