1. Taking photoes of things, yes this very much has function.
2. Building villages, painting them, trees, rivers, bridges etc etc. Quite detailed.
3. Invent stuff! Thats right, you can make you own things. It works by first combining three things into and idea and then you get your "recepie", then you need the material to acctualy build/creat it/them. Here is where taking photoes of things come in. As you take shots of things, you can add them to you notes, for example "tree", "pipe", "ironmaiden" etc etc. Soo basicly you will end up with a huge something like 300-400 words list, and then you either find clues like say "wheel + pipe and ..." or you just mix things randomely and hope you will invent something (moast of the time you won't) I could go on and on about this, but it sums moast of it up.
4. Weapons plays a huge part in the game, theres quite alot of possibilities here, but in short the boy will use a huge tools as melee weapons and guns for range, and the girls swords for melee and magic bracelets for range. Diffrent weapons are good vs diffrent things and diffrent elements. Just to give an example of how much the weapons can differ, you can end up with a rocket rifle or a machinegun or even laser. Then there is status alignments thrown unto this whole mess-
5. Robot, your boy is an inventor and as long as you got fuel you can drive/hover/walk or whatever around with your killing machine.
6. Monster play, by collecting badges and playing as diffrent monsters you will gain acces to some of the monsters in the game through the girl. Didn't realy give this much of a chance personaly. But things evolve as you play them and it acctualy seemed quitte intresting aswell.
7. Fishing. The fishing game is quite good, and fun at that! What fish you get mathers on where you fish, what lure you use and a bit of luck. Once a fish bites you gotta be carefull not to let it get away or pulling to fast soo the line breakes. But thats not al, later you will get access to (at least if you invent it) a casting rod with lure, the way you catch things with this is quite diffrent and you usualy get diffrent fish using this rod, lure migh also depend, can't say I remember.
8. Fishing competion. Not only can you try and win the heaviest caught fish competition every game week, but you can also join in on fish races! Thats right, you get to race with the lil fuckers! You also get to breed and train your fish if you invent and build your own aquarium... getting the ultimate FISH! *laugh*
9. Golf, well kinda like golf, just alot more fun and called speeda or something like that. You get to play this everytime you cleare a level of al of it's monsters and get a few shots on you to get a shiny ball into some warphole thingy. It's retarded fun, more like pinball then anything I guess... Yea like pinballgolf.
10. Quite good storyline.