CHARGE BACK, FORWARD + ATTACK
This is Ken the Eagle's projectile attack. It can hit your opponent when it is on its way out as well as on its way back. The strength of the attack button used affects the trajectory of the Birdrang. The attack has some start-up time and does not do a lot of damage on its own, but it can be useful in disrupting an opponent's approach.
FORWARD DOWN DOWN-FORWARD + ATTACK
The Bird Shoot makes Ken do a flying torpedo at his opponent, similar to Jon Talbain's Beast Cannon in Darkstalkers. It is a useful move that you can use in combos. It can be used in the air but you can only use it once before you have to return to the ground to recharge, though Ken is free to attack or block during the recovery. It is also useful in giving Ken good mobility to get position.
The strength of the button pressed affects the trajectory. Light Attack causes him to torpedo straight forward, Medium Attack causes him to torpedo diagonally forward and up, and Hard Attack causes him to torpedo straight upward.
HALF CIRCLE BACK + ATTACK
The Eagle Rush causes Ken to glide downwards and, if it connects, kick his opponent several times before bouncing off. It can be useful in combos. Be careful, however, because if you miss with the attack Ken glides down very slowly, making it very easy to get punished by your opponent. The strength of the attack button used determines how many hits it does. The Hard Attack version hits the most times but has the longest start-up.
BACK DOWN DOWN-BACK + ATTACK
This makes Ken teleport into the air, ready to launch an attack. It is very useful to escape a bad situation or to play mind-games. Like the Bird Shoot, Ken can perform this move twice before he has to return to the ground to recharge. The attack button pressed determines Ken's teleport positioning. Light Attack teleports him to the left, Medium Attack teleports him to the middle of the screen, and Hard Attack teleports him to the right. These positions do not change if your character switches facing during the match.