Sabans Power Rangers Super Samurai

This is not a co op achievement, although it can probably be done in co op.

Simply collect five discs from enemies or bosses when a Super Samurai and then use your special attack and you will perform the attack with the Bullzooker.

The best way to get to five is to knock the bosses down when they are dizzy so they give you a disc, use your special but don't attack until the special wears off. Rinse and repeat until you have five discs then attack the boss with the special.

The only difference I found between this weapon and the five disc cannon one was I activated the five disc cannon one when I was a not a Super Samurai.

I was a different ranger when I unlocked this but I doubt that was the reason. If anyone finds out it is dependant on the ranger then let me know.

This is a single player achievement. Doing it in co-op will get you the five disc cannon instead.

During the boss battle, at the bottom of the screen you will see the outline of the cannon with five dots in it. As far as I can tell you fill those dots by landing finishing moves on the boss.

If you go into the fight with finishing move ready, you should get most of the bosses health down and fill three of the dots. Then you will have to earn another finishing move to finish it off.

I did this on the final boss, the two part battle seemed to help with accumulating dots. I believe getting knocked down may reset the dots as well, so the faster you try to do this, while keeping an eye on dodging attacks, the better your chances.