Mortal Kombat The Journey Begins - 1995 V is rated/received certificates of:
Finland:K-10
Kombat Sechzehn - 2005 is rated/received certificates of: Germany:16
Phelous and the Movies - 2008 Mortal Kombat The Journey Begins 4-1 was released on: USA: 5 January 2012
Mortal Kombat Defenders of the Realm - 1995 is rated/received certificates of: USA:TV-Y7
Mortal Kombat - 1992 VG is rated/received certificates of: Argentina:M Germany:(Banned) (1994) USA:M
Mortal Kombat Special Forces - 2000 VG is rated/received certificates of: USA:M
Ultimate Mortal Kombat 3 - 1995 VG is rated/received certificates of: UK:15 USA:M
Mortal Kombat 3 - 1995 VG is rated/received certificates of: Argentina:M Germany:(Banned) (1997) UK:15 USA:M
Mortal Kombat Defenders of the Realm - 1995 Kombat Begins Again 1-1 was released on: USA: 21 September 1996
Gears of War
It is not bad in ratings it is very fun. If you mean in violence it is a lot and very bloody.
From the stand-up arcade game to your home entertainment console, Mortal Kombat is a very famous video game (usually rated M). The story begins with Mortal Kombat (1992), followed by Mortal Kombat 2,3, and 4. Then came MK: Deadly Alliance, MK:decception (oct. 2004), MK: armeggedon (2006) and finally, A MAJOR realm-crossing Mortal Kombat vs. D.C comics.
Zaterra, which is the realm which Reptile, Khameleon, and Chameleon are from. It serves as a good example of what might happen if Shao Kahn gets Earthrealm, as it is rumored that it's defenders were defeated in kombat and he destroyed it afterward.