What two games combined could work as their own game?

After seeing someone combine The Stanley Parable and P.T and have them work side-by-side in a way I never thought possible, I started thinking about more possibilities. What two games do you think would work together if combined?

All of them !

I've always yammered about injecting Psi-Ops gameplay into Bioshock's world and storyline. Or, better yet, Psi-ops gameplay into Advent Rising's world. Both AR and Bioshock have compelling scenarios and gameplay that combines shooting elements with mental abilities. But, whereas Psi-ops was just a playground of psionic potential gameplay-wise, AR and BS really failed on that front.

Same franchise, but I would like to see RE2 with RE4's gameplay. Actually Re5's gameplay, because I want the co-op with Leon and Claire.

that video is pretty clever, btw.

Reminds me of Portal Kombat

Reminds me grand chase and elsword

Haha I had to say it, Cheerleading and basketball lol! A few days ago, I read 2k is now getting official routines.

On the serious side, I would take Mega man X, and combine it with a epic story, and make it play just like mass effect. Like legends, but a RPG where I gain points, and armor, to upgrade megaman like normal, but make it into a whole universe like mass effect, and have him go to different planets, fight different aliens, and reploids.