Grappling with Grabbers is the fourth Challenge Act of Chemical Plant Act 2 in the console/PC version of Sonic Generations. It is unlocked after clearing every Stage in the classic era and is playable only as Modern Sonic.
The player takes control of Modern Sonic in Chemical Plant Act 2 with no supporting characters. Much like the Eggrobo Rush, this challenge fills the stage up with more than the usual number of enemies, this time being the Grabbers. While they don't provide much of a threat, their main purpose is to grab and hinder the player's progress so that they may not make it to the goal within the given time limit. The stage is played mostly in 2D with it being mostly platforming with no speed.