The screen where you can assign your skill points is universal, so all the characters profit the same from them. This isn't exactly a good thing, since it's hard to get a good warrior if all your skill points are invested in mana, and it's hard to have a truly dangerous mage when his fireball can barely destroy a barrel.

During your mission, you will also find power-ups that can be collected and used at the appropriate time. There are about 20 types of power-ups though, and you can only collect 3 of them and that means you'll usually want to stick to 2 healing types of power-ups and a damage one. It's a real shame, since you'll have to pass most of the power-ups that you find, because your 3 slots are full. Life leech and regenerating power-ups are probably the most useful, while power-ups that offer fire or ice coated weapons offer a huge increase in damage.

The levels are filled with different types of monsters and traps. You have a nice bestiary where each monster is described, but unfortunately the only way to discover what the traps do, is to experiment it firsthand. While they may not seem too dangerous, their high number can quickly reduce the health of even the strongest warriors. Secrets are also in abundance in all the levels of Kivi's Underworld. Finding them is quite complicate, and it requires the player to click on all the walls, hoping to uncover them. The rewards are worth it though, since you can find anything from jewels to new characters.

Beside the trophies earned for finishing the missions, there are a number of other trophies that can be attained. You'll have to work pretty hard to get all of them and some reminded me of difficult achievements on the Xbox. There is no real reward for getting all of them, such as gamer score, but they're there, for the completionist in you.

Compared to Depths of Peril, Kivi's Underworld does look a lot better. Everything is detailed and sharp, and the animations are fluent. Of course, there are some bugs, such as your character floating about, but I'm sure they'll be gone in a patch or two. The fog of war implemented also takes into account the line of view of your character, but it can get frustrating when monsters suddenly disappear, obscured by some barrel or torch, and appear next to you.

The sound effects will quickly get repetitive, since there are only so many sounds that a barrel can make when being destroyed, and the music doesn't have anything remarkable to set it apart from other games. However, the narrations are a nice touch that greatly adds to the game.

A SDK is also offered by Soldak Entertainment so every player is free to design his own levels and mods, adding content to the game, and as it has happened so far, a mod better than the original design will surely appear.