Played the Wii one, stuck in my memory but never finished

I played it, but I remember nothing about it other than the fossil digging minigame. I think you had to blow on the mic to clear dust from the fossils? The actual combat or story, though, no idea.

Hopefully.

I tried the Wii sequel, it was decent but pretty forgettable, so I dropped it when the I needed to start to grind. Is the original good?

I did to! I played the second one "Gates to the Galaxy" or something first and got the first ine later. I found the first one's difficulty a bit ill balanced tho: The first two bosses were alright, but then I had to grind for hours, change all my equipment and evolve two of my spectrobes to beat the third one, the one guarding diamond that you must give the capitalist pig for his info. And after that, evey single boss was a breeze...