Hahaha nice!

LOL xD even though i did not understand one word of tht it was funny

Well... let me translate some of what they're talking about..

OP Song lirycs Romaji:

Itsumo de futaride iruno ka na?
Oishiku deki kara itadakimasu..
Shiranai mama demo ii no kana?
Honto no Kimochi wa Himitsu Da yo...
Himitsu Da yo..

English:

Are we don't look like Usual?
Let it be delicious for yourself (? Sorry i don't know what just that means)
Even Without knowing what i say?
The real feelings is a Secret...
Is a Secret..

Story Mode: (Have a big potential to be incorrect #Japanese Help Me!)

Someone: "HELP ME!!!"
Kirino: Wait... i would say it's really wait!
Kariya: Yay! a Typhoon!!!
Kirino: Stupid, you like Typhoon??
Kariya: This blow-fast wind can make a really amazing Killer Technique, set yourself...
Take this! I CAN HAVE SOME PUNCH!!
Narator: Wind...
Kariya: AHGHAHAAAGG!!
Kirino: You Will...
Kariya: So.. the true power are still not Enough..
I KNOW!
Kirino: (????)
Narator: Bag Rip Off..
this enough! i'm busy now!