My brother can make his dog do a frontflip when he throws the disk to them..

I love nintendogs!!!! I think you moveup his bodie and then forwards. Backflip you then mive backwards.

I think you have to tell him to flip, you have to do this a lot of times though, and then he will learn this, I think you have to do something with eaither his head or his body aswell.

Bigger dogs tend to do a flip when they catch the disc; my shepherd, Orion, does it all the time.

I think that it just randomly happens, because I didn't teach Orion to flip when he caught the disc. He just did it.

I think it depends on the size of the dog. I can never get my smaller dogs to do that, but my german shepard does it every time he cathes the disc.

Whenever I try to throw the disc high but not far, it makes most of my dogs do it. That's just what I do, and it works most of the time.

Listen carefully:
If you want your dogs to be cool read this tricky cheat from the end to the start(also do this with the letters) EXAMPLE: frontflip-pilftnorf
DO YOU UNDERSTAND?
If yes: start reading NOW!!!
IF NO : your dogs will NEVER-EVER be cool!!!

FINISH HERE:noitanigami ruoy fo tcudorp a si emag sgodnetnin rouy skrow t'nseod siht fI .noisrev rouy morf kcolc nekorb ro csid azzip eht ro noisrev bal eth morf OFU eht ro gnir efil eht noisrev dnushcad morf pac rewohs eht ro draobtrad eht ekil scsid laiceps eht esU :START HERE

Pity: I'm helpful, but tricky!!
I hope I helped!!!

I will translate that for you.. Use the special discs like the dartboard or shower cap from dachshund version, the life ring ( actually Promise Ring, ) or the UFO from Lab version OR the pizza disk or broken clock from your version. If this doesn't work, your nintendog game is a product of your imagination.

Fyi. You can get all of the discs i said in your version, so dont worry about buying other versions.