I made this for another purpose, but it'll do. :D

Bonus points for detail.

Those are metroids. Is it the friendly metroid from the end of... Super Metroid?
I think I've remembered that all wrong.

No fucking way. Toonstruck was the first thing that had come to my mind but I totally didn't remember any bowling scene. It's apparently one of them cases where the subconscious is surprisingly powerful. O_O

The things one remembers can often be very strangely selective. If you are interested here are two bowling scenes taken from the same longplay.
Scene 1, Scene 2

Yep.

Nope.

Try again. :D

Metroid Prime? That's the only one I remember to have multicolored metroids.

You are correct - they're fission metroids, which have the same colours as Samus's beam weapons.

Boh. I never played it.

This one took a lot longer than I first imagined, so I cropped half of it to make it harder than obvious :p

/edit: Here's a hint picture. It's probably pretty obvious now, maybe. At least it's less obvious than with the arthropod I cropped out of the first image. The one I totally didn't crop out just because the proportions were wrong and I couldn't be bothered to fix 'em, laalaalaa
/edit2: Here's a picture of the aforementioned arthropod. Something stupid happened a moment ago, and it was one of those things you shouldn't complain about online, because that'd be silly, so I channeled some of my current frustration and whatnot into him. It actually helped. People are big zebra faces and have smelly feet!
/edit3: now I'm just drawing because I'm bored

It isn't Ryu or Goku. Street Fighter's kinda warm, though. Anyway, no correct answer yet :p

Mortal Kombat

Mortal Kombat is correct! Your turn.

Next one.

The only thing I can think is Home Alone, but that doesn't quite work. More the pose than anything.

Actually, now that I think about it, he is probably covering his ears, and has no mouth.... I still got nothing.