Illbleed イ\ルブリード Iruburido is a survival horror video game developed by Crazy Games (formerly known as "Climax Graphics") and published by Crazy Games in Japan and AIA in the US for the Sega Dreamcast. It was released in Japan on March 29, 2001 and later in North America on April 16, 2001. Despite being financially unsuccessful, this game received a worldwide cult following for its notable combination of nonlinear gameplay elements (e.g. trap detection) and bizarre B-movie style comedy horror theme, dialogue and voice acting.
The gameplay of Illbleed differs from other survival horror games. The player is encouraged to not rush through the level, but to slowly walk from place to place, looking around and at the environment. Using a tool named the Horror Monitor that consumes the player's adrenaline, the player can mark various places suspected of being a trap. These traps burn, slice, scare, and hit the player in various different ways, resulting in blood loss, rise of pulse, and lowered stamina so that means that even the environment itself is a threat to the player, in addition to the enemies.
The player is given tools and items to prevent the character from bleeding to death, running out of strength or adrenaline, or being scared to death. If the player fails to keep the character alive through the course of the level, they must be revived outside of the level and has to continue the level with another character. If the player runs out of characters, then the game ends.
When engaging enemies, the player is not allowed to exit the battlefield until the enemies are cleared out. If the player tries to go beyond the battlefield, it will flash blue. In some cases, the battlefield has a smaller green square with a letter "H" on it; a helicopter hovers over the area (even indoors and when a concrete roof is above you in 'the homerun of death'). The player may attempt an escape by standing on the green square and pushing the B button repeatedly to call for help. Successful escape clears out the enemies.
Four senses and horror monitor.
A character has four senses: Sight, hearing, smell and sixth sense. Each time the player gets near items or traps, one or multiple senses will register on the meter located on the top of the screen these senses are indicated like a heart monitor. The player may utilize the horror monitor, which consumes adrenaline, to mark the spots suspected of hoarding items, traps or lurking enemies. Any spot marked will display a glowing blue orb, which the player can survey. Some traps will be successfully defused this way and the spent adrenaline will be returned to the character.
Source: Wikipedia, "Illbleed", available under the CC-BY-SA License.