The gameplay and concepts were just simply original, and they worked out great. Pure awesome.
Graphics:
The graphics are amazing and original! I liked the fact that everything looked more complex and drawn rather than having attempts at realism. I felt like I was in a cartoon like Invader Zim, which was fitting knowing who voiced Raz.
Sound & Music:
I believe that the voice-acting was well done. I enjoyed the music too, and it fits all the different environments perfectly. And music just compliments the mood of everything.
Game-Play:
Very original! I've never seen anything else like this, where there's so many varying types of game-play! There's so many different types of interaction in the game. Sometimes, you'll get funny reactions from the characters, or you'll unlock secrets to the story. Another thing I loved is that, I encountered no glitches! No flying out of the level into a void, like I have in so many other games. No getting stuck and having the restart areas. No freezing or being kicked out into the desktop.
Story:
Also very original and different! And it was set alongside the game-play so well. Everything you were doing in the game helped to add to the storyline, which I liked.
Overall:
I suggest that you buy this game if you find it. There's plenty to do in this game, and I'm still replaying it and discovering a few new things every time, and I'm still having fun while doing so. You'll also get a good laugh from what the characters might do or say. There's plenty of different moods, from humorous to sad. This game is definitely worth a try if you've never played it before.