9 Awesome Hidden Modes In Popular Video Games You Totally Missed

6. The Inverted Castle - Castlevania: Symphony Of The Night

It's a common debate amongst Castlevania fans as to whether this truly is an optional area, being the inverted castle is the natural continuation of Symphony of the Night after defeating 'final boss' Richter, and the only way to see the 'true' ending, but it's far from easy to get to.

To access the vertically-flipped castle and the entire other 'half' of the game, first acquire the Holy Glasses (themselves requiring acquisition of multiple other items) and head to Richter. Wearing them, you'll reveal a green orb above his head, which destroying will free Richter, reveal who was pulling the strings all along, and transport you to the game's biggest challenge: Understanding and completing the inverted castle.

Inside here you're tasked with locating the various body parts of Dracula himself to trigger a final showdown, and if you do all of this, you'll actually get the true, positive ending - something only a select few Symphony of the Night players have acquired.