2. Use the lamp. Once Knuckles has collected all three orbs, he will need to use the lamp to light the torches, which will open the door.
3. Defeat the enemies. In order to collect the orbs and light the torches, Knuckles will need to defeat various enemies, including robots and animals.
4. Be careful of the traps. There are also several traps in the level, such as spikes and pits, that Knuckles will need to avoid.