|Doom Dome Battle|
Ex.no.121 is a boss character in Doom Dome Battle 2.
A perfect example of an experiment gone wrong. While Ex.no.116 was held captive at Pyrotic Labs, Denzel started experimenting with it. After several failures this is what emerged from the cauldron, a large pile of unidentified organism. Seeing his mistake, Denzel quickly locked the things away in the most secure place known, Area 64, not even wanting to risk having it in his own labs. Ex.no121 is said to take other organisms and merge them in their own body, becoming one with them. It luckily is very slow, but be warned for this creature.