Gameplay
Heart of Darkness is a cinematic platformer in the vein of Eric Chahi's previous game Another World. Andy has the ability to run, jump, walk, climb and somersault, which allows him to hang air for longer. In addition to this, he can attack or defend by using either a plasma cannon or by throwing magic energy, depending on which section of the game is being played - although in some sections, he is not able to fight at all. The magic energy can be used to grow or destroy trees, and both weapons can be used in numerous ways. Andy can also climb up rocks, swim underwater and perform several other actions. The game is linear, the player spends the game completing puzzles, timing movements, or simply moving in order to get to the next screen. Backtracking to previous screens is rarely required.
The game is notable for the number of disturbing ways that Andy can be killed, a common element in many cinematic platformers. While the deaths of the game's enemies are for the most part visually cartoon-like, Andy himself can be crushed, incinerated, drowned, fall to his death, have his spine broken, or be eaten alive in graphic detail. Despite this, the game still retains an E rating.
The game was released with a pair of red/green 3D glasses so that certain scenes can be viewed in 3D.
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