Gaming crossovers that need to happen

[Samus Aaron]

So, in case you haven't heard, Professor Layton and Phoenix Wright are teaming up in a crossover game sometime next year on the 3DS.

http://www.escapistmagazine.com/forums/read/7.239647-Professor-Layton-Taking-On-Phoenix-Wright-In-New-Crossover?page=1

This isn't the first crossover either; Marvel vs. Capcom, Poker Night at the Inventory, Super Smash Bros, and a few others are also awesome crossovers that have been released.

This brings to mind an obvious question: What gaming crossovers do you want to happen? What genre would they be (fighting, RPG, racing, etc.)?

Here are the first ideas that popped into my head:
-Valve crossover (featuring two or three of the following universes: Half-Life, L4D, Team Fortress)
-Metroid and Halo
-L4D and Dead Rising

 

[Pingieking]

InFamous and Prototype.

 

[NeutralDrow]

I still insist on Devil of War Hand.

Spoiler: They fight crime.

 

[badgersprite]

Space Quest and Mass Effect.

 

[Romidude]

Just Cause 2 and Left 4 Dead, THINK ABOUT IT.

 

[tombman888]

my answer was ninja'd (just cause 2 + l4d) so instead:
Jak and Daxter + Ratchet and Clank.

 

[Zechnophobe]

Final Fantasy and cartoons for little children.

Oops, not only do I repeat myself, but I was ninja'd twice over many years ago.

(FIRE SHIELD UP).

 

[LimitedSkills]

Disgaea and Final Fantasy Tactics.

Ninja Gaiden and Devil May Cry.

Dead Or Alive and Tekken.

 

[Shoggoth2588]

Kingdom Hearts and Final Fantasy.

I laughed assuming you were joking but, a Final Fantasy game with the Kingdom Hearts' combat system would be awesome o.o!

---

OT: It can't happen in the U.S. but it happened in Japan

This game is basically SSB only with anime characters instead of Nintendo characters. It would be cool if this escaped Japan but look at that character roaster! Outside of Japan those characters are owned by different companies...companies that don't realize The Heart of the Cards isn't as powerful as a Spirit Bomb or, the blunt-side of Kenshin's sword.

AoTtT:

How about Bully and GTA? Your own Bullworth graduate grows up to be the crime lord of Liberty City!

 

[BrionJames]

no no no. Not ninja Gaiden and Devil May Cry. Ninja Gaiden (Ryu Hayabusa) and Shinobi, that my friend would be fuckin sweet.

 

[FalloutJack]

Alright, some ideas...

Mega Kamen Rider X! - The tale of Reploids who become mysterious ass-kicking warriors or Maverick creatures.

Devil Fantasy 7! - The characters of Devil May Cry were BORN to show up on Cloud's world.

Blazblue: Extermination! - An infectious and horrifying alien form of life has struck the Earth, and it's feeding off all the seithr.

Shadow of the Gundam! - Tales of a Zeon soldier who climbs aboard Feneration Mobile Suits and sabotages them.

Left 4 Star Wars! - Some idiot transported a bio-plague across several planets, and your team is unwittingly stuck in a horrible infestation.

Skies Of Arcadia: Nocturne! - You are the Demi-Fiend, out in a world full of monsters and apparently floating ground. Have fun with that.

Fallout: Half Life! - C'mon. You know a team-up between the Lone Wanderer and Dr. Freeman is cool.

 

[Tanis]

Fallout - Final Fantasy 6


Road Warrior meets Tolken

 

[GiantSpiderGoat]

StarCraft, Halo, warhammer 40k: War of the space marines

Spoliers they team up to exterminate all the bug like creatures trying to take over everything.

 

[MC_Smizzle]

Prince of Persia and Assassin's Creed.

Let the parkour battle of our time begin.