Upgrader

UpgraderCheese_-_thumb.png|Level up your friends and trails!
UpgraderChocola_-_thumb.png|Thriving variety of friends and trails to collect!
 
The Upgrader (aka Upgrade Machine) is a machine introduced in the Sonic Shock update that allows players to upgrade Friends to the max level, 25. It costs Rings and every five levels Red Star Rings. The cost depends on the origin of the subject, with the cheapest upgrades coming FROM Green Hill Zone.
==Locations ==
*Green Hill Zone 
* Lost Valley Zone 
*Emerald Hill Zone 
**Emerald Hill Boss Fight - Emerald Hill Boss Fight Hard Mode 
*New Yoke City Zone 
*Hill Top Zone 
*Speed Jungle Zone 
*No Place Zone 
*Cyber Station Zone 
*Metal City Skatepark Zone 
*City Escape Zone 
==Trivia ==
*This machine handles the upgrade feature following the Sonic Shock update. Prior to Sonic Shock, you could evolve your Friends or Trails without a machine.
*In the 2v70 Update: Chao School + Gemerl Update, the UI had it's entire color scheme changed to light blue, to match with rest of the game's interface.
*The machine's name was changed to Upgrader, in the v2.85 Update: Progression Overhaul. 
**Additionally, the Game UI font was slightly tweaked to have a matching font with other occurrences.
==Gallery ==
File:UpgradeMachine.png|The Upgrade Machine's UI
Upgrader_-_NewUI.png| The machine's slightly updated UI
GHZFriendAndTrails.png| Older area of the machine