The Colress Machine (Japanese: アクロママシーンAchroma Machine), shortened to Colress MCHN in the Generation V games, is a Key Item introduced in Generation V. It is one of Colress's inventions.
The Colress Machine forcibly awakens sleeping Pokémon. The player uses this device to awaken a sleeping wildCrustle in Seaside Cave that is blocking the way to where Team Plasma docked the Plasma Frigate after freezing Opelucid City. The awakened Crustle will lash out at the player, forcing them into a battle. The Colress Machine breaks after being used, consuming the item.
Colress uses this device in a cutscene on Route 4 after the player has earned the Insect Badge to awaken the group of wild Crustle blocking the road, opening up the path.
In Pokémon Ultra Sun and Ultra Moon, it is revealed that Colress Machine is a code name Colress designates to some of his inventions. The first two machines are Colress Machine No. 1198 (Japanese: アクロママシーン 1198号Achroma Machine No. 1198) and Colress Machine No. 1199 (Japanese: アクロママシーン 1199号Achroma Machine No. 1199), also known as the N-Solarizer and N-Lunarizer, respectively. Colress co-developed these machines with the Ultra Recon Squad in an effort to control Necrozma's power.
In Ultra Sun and Ultra Moon's Episode RR, Colress uses another machine, Colress Machine No. 1102 (Japanese: アクロママシーン 1102号Achroma Machine No. 1102), to return Ghetsis back to the world he came from, saving Lillie in the process. After the player defeats Giovanni, Colress is able to use the machine to undo Team Rainbow Rocket's changes to Lusamine's mansion.
In the manga
The Colress Machine in Pokémon Adventures
In the Pokémon Adventures manga
Colress begun the Colress Machine's development two years before the Black 2 & White 2 arc, but some members of Team Plasma opposed his work, as it ran contrary to their beliefs. As such, they secretly developed a method to stop the machine's influence on Pokémon, and the memory card containing that data was entrusted to a ten-year-old girl.
In Therian Forme III, Colress used the machine to take control of Zinzolin's Kyurem and had it board the Plasma Frigate. In PS542, Colress gave the machine to Ghetsis so that he could take Kyurem to face N and Zekrom. In PS546, Colress was revealed to have retrieved the machine, using it to have Kyurem attack the UnovaPokédex holders. However, Colress suddenly lost control of Kyurem, and Rood appeared, revealing that a machine to counter the Colress Machine's influence had been activated, preventing it from controlling Kyurem anymore. After several failed attempts to make Kyurem obey him, Colress accepted his failure and threw the machine away.
In PS547, Colress was revealed to have developed another, longer-range Colress Machine, which his Beheeyem had secretly been using to control the Red Genesect during his battle against Blake through voice commands he'd been relaying to it. Blake's Pokémon were able to destroy the machine, but as Colress had actually bonded with and personally raised the Red Genesect, it still remained under his control.