This is an obscure Japanese fangame from 2003, based on the classic Phoenix Wright - Ace Attorney games.
In it, you play as a wolf version of Phoenix Wright, facing a panther version of Miles Edgeworth, with an owl version of the Judge.
And what's the case? Well, you defend a bouncy young catgirl who has a Space Invaders tattoo, and she has been framed for a murder actually committed by an evil lion surgeon who wears a DBZ Saiyan scouter.
Okay, this sounds a bit weird now that you think about it...
I learned about this game many years ago, when I found gameplay footage as I was in my Ace Attorney fanboy phase...
While there is gameplay footage around, the actual game that can be played seems to be lost.
I know the original three Ace Attorney games originally came out in Japan on the GBA before being ported to the DS and was translated to English, so this is pretty much a relic of a time before the franchise came to the US.