Listen to the sound clip Decepticons, this is your master Megatron. An Autobot is trying to escape with the Allspark. Catch him and crush him. from Decepticons - Transformers: The Game - Dialogue (Wii):

Decepticons, this is your master Megatron. An Autobot is trying to escape with the Allspark. Catch him and crush him.

This sound is from Decepticons - Transformers: The Game - Dialogue (Wii)

Dialogue sounds from the Wii game Transformers: The Game.