Nerobi

You are in a universe regulated by a mysterious Balance, populated by Essences, Spirits and Demons. Here, you will assume Nerobi's identity. You have lost your memory after a gruelling fight with the Demon of Oblivion. Crossing the Middle World, where all Essences pass before reincarnating, you must recover your past. But be careful: there is something wrong in the Middle World, and thanks to your astonishing potential, you will be called to set things right.

This indie game is a 2D scrolling platformer with several elements typical of a graphic adventure, featuring some cinematic sequences. It is all hand-drawn.
The gameplay is definitely challenging. It requires coordination and timing, and you have to use your wits. Different powers are unlocked as you go along, expanding the gameplay experience.
In addition, scattered around the world, there are several hidden cards to collect.