Hatena Bugster

Hatena Bugster appeared in 2016 movie called Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider. Hatena Bugster (ハテナバグスター Hatena Bagusutā) is the monster manifested from data of the puzzle game, Hatesate Puzzle, having been born from its developer, Togo Kiyomiya.

Ultimately, Hatena was destroyed by Kamen Rider Ghost Tenkatoitsu Damashii.

Hatena was part of an perpetually reviving army of Bugsters which emerged in the real world as a result of Kuroto Dan's plot to revive in the Game World. This endless horde was held off by Kamen Riders Brave and Snipe, sharing the Gashat Gear Dual β and Hunter Gamer between each other, while Emu was sent from CR to the Game World to stop Dan. Ultimately, the Bugster horde was suddenly dissipated in an instant as the destruction of the Game World brought about by Kazuma Kenzaki thwarted Dan's ambition to revive.

Powers and Abilities
Hatena Bugster is an extremely powerful monster. It overpowered Ghost's combination of 15 heroic souls, and even his infinity soul. The Bugster can open a portal to drop explosive blocks on his enemies. It also has the ability to transport Bugsters and their enemies to a proper battlefield of their game, similar to Gamer Driver's Stage Select.