The main problem with Rugrats Go WIld is that it has no substance, and gets to the point where it's unenjoyable.
See, the game is split into five map overworld sections with 1-2 (yes, 1-2) rather short levels to complete. Interacting with the NPCs will always tell you that you need to find an item before you can progress onto the stage, usually involving that you find 1-3 missing items or talking to another NPC. If you're finding the missing items, they will usually only have 3-5 spawn points, and none of them take more than 5 minutes to find. After that, you'll be taken to the stage that you're meant to go to, and there are two stage types in this game. Let me try and break them down a little more.
In the first stage type, you'll be taking on a specific set of hostile animals and scaring them away using a projectile known as 'gooshy balls'. The second involves a type of driving minigame where you have to avoid colliding with the oncoming 'vehicles' such as jeeps, but can include boars and bats, but they do the same thing anyway. Once you collect the objective (either one young leopard running away, energy balls or glow-worms), the big boss will chase you through the relatively circular map until you've evaded them for the elapsed time necessary. Defeating these stages (sometimes in a certain order) will allow you to progress to the next area of the map. Seeing the problem yet?
Basically, you only have two re-skinned level types with seven levels to complete (but the game makes you redo two of them, so it's more like 9). This becomes very monotonous very quickly, and by the time you get halfway through the game, it feels like more of a grind. I say grind because while the game is tedious, it doesn't mean it's hard in any way. Hell, I only died once and that was due to me slipping off into the bottomless pit on the final level. As I stated above, it took me 30 minutes, and it's not because it was hard. The game has no replayability despite what my play time of over 40 hours would suggest, as once you've completed the game, that's it. To the games fairness, it does have slight replayability if you can even call it that, and that's in the way where you can talk to the NPCs and redo the levels with slightly more enemies/obstacles, and it's the closest you'll get to the game having a harder difficulty, although it isn't really saying much. If you do these levels 10 times successfully, you'll be awarded with a gold coin, but these gold coins count for absolutely nothing. They're never mentioned, never shown, and collecting them all seems to do absolutely anything, so they're completely pointless. I wouldn't have even found them if it weren't for me trying to find a degree of replayability in the games to the point where I kept playing the stages while the game gets progressively 'harder'.
While the visuals such as the graphics are pleasing, they're nothing special. The animations are neat as well, animals flee when they're approached and all NPCs (but not the main characters for some reason) have their own animations, which gives them a touch of life. Sound effects are really good and so is the music. Problem with the music is that there are only five songs in the entire game, including the credits. There's one for the map overworld, one for the animal battle stages, one for the driving minigame stages and one for the boss theme. On top of all of that, the game uses a password system instead of a save.
This is the problem. The game is devoid of content, no replayability and with that, it makes the game really boring.