Know the Secret was the best of the Animorphs based video games. It's cheesy, as ***, but in a way that is oddly encapsulating of the Animorph spirit.
It gets a bit repetitive in terms of play though, turn based combat, no real difference between travelling as an owl vs bat, or tiger vs wolf, the controls are a bit choppy, and it's very restrictive of when you can do things, and where you go.
I've played through several times. It's fun I suppose, but not anything mind blowing, but beats the hell out of the horrible gameboy one, and the very plain PS1 game.
Don't know where to get it though