I copped it because it looked bold and interesting enough to not be a game similar to everything that was coming out around it.
Then I played it and generally fell in love with the groove of what it was trying to do and did so in a damned good fashion.
Also helped that I'm always interested in funny, Super Sentai shyt, so it was almost par for the course for me to like this game.
The closest we got to anything like this from Nintendo again, was wit that Arms99 game, but of course, it's not the same.