Beast Rizer 4

Beast Rizer 4 (ビーストライザー4) is a platforming video game produced by Burst Arts Inc. and published by Namco. It is the last 2D game in the Rizer series. It was released in October 30th, 2000 in Japan and December 19th, 2000 overseas. It is available for the PlayStation, the last game in the series to be release on the console.

Story
Following the events of Beast Rizer 3, Theo and his friends returned home to their respective islands. Summer vacation is still here, and yet there is nothing else to do for Theo. He decided to play around with Toby at the park until they noticed a suspicious bed of sunflowers. They explored the seemingly endless field of flowers until they suddenly fell into them. Then, the two found themselves in the "4th Dimension," as announced by a suspicious girl with green hair. Her name is Adel, and she claims that she is looking for her "other half." They do some exploring around this new dimension until they come across a chimera, but not like the ones the trio is used to seeing: this one has the complete appearance of a beastman. The chimera, named Havoc, is on his mission to steal all of the sunflowers of the 4th Dimension in an attempt to return to his original form. Now, Theo and Toby must seek the assistance of their friends from the 1st Dimension (their home dimension, according to Adel) in order to stop Havoc and his Wraith Beasts from stealing all of the sunflowers.

Playable Characters

 * Theo Stormwald (Dinosaur)
 * Toby Tennant (Turtle)
 * Michelle Springs (Eagle)
 * Marc Maldonado (Bull)
 * Jacky Creed (Scorpion)
 * Alicia Rose (Alligator)
 * York Jones
 * Carmen Montana
 * Edward Violet

Non-Playable Characters
Adel Emeraldsphere: A strange girl with green ears who resides in the 4th Dimension. She vaguely remembers her true past other than her "other half" leaving her. She has been searching for her half until she came across Havoc, who has later resorted to devouring sunflowers to be a normal human, and now Theo and Toby, who fell into the 4th Dimension from exploring the sunflower bed. The trio decide to help her with saving the 4th Dimension from Havoc and his Wraith Beasts.

Havoc Chimera: The primary antagonist of the game. A chimera beastman who lives in the 4th Dimension. He has a strong craving for the dimensional sunflowers, claiming to be the cure to transform him into a regular beastman. He has sent his Wraith Beasts to collect the sunflowers for him. Later it is revealed that Havoc was never a normal human; he is the son of Chaos Chimera, one of the most fearsome chimeras of the 1st Dimension who also fell into the 4th Dimension the same way Theo and his friends did years later to escape the Chimera War. It is also revealed that Havoc has been tricked into stealing and eating sunflowers by Adel's other half, Silas.

Silas Emeraldsphere: The true main antagonist of the game. Silas is a boy with strange orange hair. He remembers being separated from his other half Adel after some event. He became determined to bring the two together again by using the power of the sunflowers. For this he tricked Havoc into thinking that eating the sunflowers can make him a normal human again. He even summoned the Wraith Beasts from their slumber in order to kidnap her. When the heroes finally get to fight him, Silas uses a black flower to turn Havoc evil. But this obviously fails and Silas resorts to fighting them himself. His boss fight has two phases: the first phase is where he transforms into his true self to fight, and the second phase is where he transforms every sunflower black and absorbs them to become a flower monster. He was almost impossible to defeat until Adel sacrificed herself by fusing with Silas.

Adelaide: The goddess of the 4th Dimension. She has ruled over the beings of this dimension until she was struck down during a war that took place many years ago. This caused her to be separated into two separate halves: Adelb and Silas. After the two have successfully fused, she sent Theo and his friends back to the 1st Dimension after undoing the mess caused by Havoc and Silas. She even allowed Havoc to change his ways and benefit their dimension.