In the beginning, use Flona's Slow Motion ability to get past the knights. Then, use Donkey to defeat them. Also when you start, use only one player. In the middle of the level, let another player play at full health. Additionally, in the final fight, when the two Trolls are spewing out explosives at you, just climb up the stairs on the right side of the screen. Remain at the same level as the Troll on the right. The left side Troll keeps throwing the explosives at you, but they will keep landing at the other Troll that is close to you. Eventually he will die, and it is easy to kill the remaining Troll. Push the explosive back at the Troll when it starts making a continuous beep. The same technique can be used against the three Trolls (Troll Fan), but you have to climb the stairs on the left side.