I got this, because I have loved Godzilla games in the past.
Does this game deserve a 4.5 from IGN for poor graphics and repetitive gameplay? Absolutely! However, I do still think it's a fun game, especially if you're a fan of Godzilla movies. The roster is fairly large, with varied environments. The single player is certainly the worst part. You control Godzilla and try to destroy as much as you can. The goal of each level is to specifically blow up generators, but the more you destroy the bigger Godzilla will get. This is fun twice, and then gets super boring.
The part I legitimately enjoy is fighting other monsters. I played the online quite a bit last night. Yes, the monsters are very slow and turning is kind of rough. Other than that it's a super dumbed down fighting game. Triangle can throw and sweep, circle is a blast attack, X is a charge, and square is a basic three hit combo. You can also collect parts from the single player to upgrade the monsters abilities and get more moves.
Biolante is god tier.