I hate to say it, but I'm actually becoming pretty bored with this game already. There's little incentive to carry on, since there aren't really any rewards for solving puzzles (except unlocking more puzzles).
A lot of 'em have the same solution, too. Summon God to kill an enemy, use a jetpack to jump high, use a black hole to obliterate things in your way. Need to move something? Chopper with a rope on it.
I find I either hit a brick wall or solve the puzzles in seconds. Overall, I'd say this game has some really cool ideas, and I don't regret getting it, but it's more disappointing than I'd expected. I'll probably enjoy titles like Persona PSP and Half Minute Hero a lot more in the long run, and this will remain a novelty, albeit an interesting one.