Death Jr: Root of Evil is fun from beginning to end. This game takes you on a journey as the grim reaper's adolescent son as he attempts to save the world with help from a group of his friends (who just happen to be evil, misfit, accidental geniouses - what do you expect from the son of the grim reaper?!). It has great characters (aside from one, who is a bit over the top - just my opinion), and a story that reels you in by being very funny. There are many forms of humor in this game; one liners, stories, level and character art, weapons (a flaming toilet paper launcher just to name one), menus, etc... The entire game premise is humorous, and keeps you very entertained throughout. There are some themes that may be a bit much for the younger ones, but not too bad...mostly crude humor with an occasional four letter word thrown in.
The actual gameplay is also pretty great, especially the split screen co-op. Each player has the freedom (to an extent) to do whatever they want. It actually makes the jumping puzzles more fun because there is someone else to help you through them. A small competition may also evolve, as both of you try to level up your moves the quickest, which can add another dimesion to level exploration.
It takes a bit to get used to looking around with the wii remote, but after a short while it becomes quite easy and useful. A nunchuck controller is needed to play this game, and for good reason. The extra buttons and joystick really come in handy. The jumping puzzles can sometimes be a little difficult, but after a while you get the hang of them. Combat is fun and special moves are easy to pull off if you remember that they exist. Aiming and most special moves are activated by the wii remotes unique movement functions. I have the most fun in melee range combat, but occasionally find myself wanting to stay back and use guns just for fun, as they add an entirely different feel to the game. Some enemies require different strategies, so you may be forced into ranged or melee from time to time.
The game is long, without being too long, and has good replay value (I've played through twice, and plan to do so again). My only real complaint with the game is that the final boss is a little disappointing. I would imagine after seeing what the boss was able to do throughout the game, that the final fight would have been more difficult. Other than that, this game is practically flawless, and a must for Wii owners. If nothing else, you'll at least have a good laugh!