Aero-Chaser

The Aero Chaser is an enemy from Sonic Unleashed. In the Xbox 360/PS3 version, Sonic can't attack them directly; he has to boost into other Egg Fighters littering the course being followed and knock them into the Aero Chasers to destroy them. Sometimes, they simply run into a pillar or a wall behind them, destroying themselves quickly. They, however, spawn more Aero Chasers when defeated. In the Wii/PS2 version, the Aero Chasers can be attacked directly; Sonic can either jump and boost into them or homing attack them.

They return in Sonic Colors, but this time, they resemble green Egg Pawns and they only shoot lasers. Just like in Sonic Unleashed, the only way Sonic can defeat them is boosting and knocking Egg Pawns scattered across the path into them, or the Chasers will annihilate themselves by running into a wall or ceiling.

Weaponry
The Aero Chaser's primary method of attack involves firing a wide laser at Sonic, which he must dodge with a Quick Step. Other means of offense include a small wall of fire, also dodgeable by Quick Stepping, and an electric gate, which must be jumped over. The Aero Chaser's jetpack doubles as a rocket launcher, whose rockets home in on Sonic.

Locations
In Sonic Unleashed, they can be found in Savannah Citadel Act 5, Rooftop Run Acts 1, 1-2 and 4; Skyscraper Scamper Acts 1, 1-2, and 3; and Jungle Joyride Acts 1, 1-2, and 5.

In Sonic Colors, they can be found in Starlight Carnival Acts 1, 2 and 5; Planet Wisp Acts 1 and 3; and Terminal Velocity Act 1.

Sonic Generations
The Aero Chaser makes an appearance in Sonic Generations in the Rooftop Run stage. They act in the same way as they do in Sonic Unleashed. They no longer resemble Egg Pawns and look like their original appearances. They were also renamed Egg Chasers.

Screenshots
Aero Chaser