Rayman 3: Hoodlum Havoc PC - The Tower Of Leptys 2/2

Time for the final boss.
It is quite a long final boss, as it is seperated into different phases.

The first you need to grab a blue can and rapidly fire at Reflux to drain his shield. After doing so, grab a Red Can and smack him about. All the while you need to dodge the lightning bolts which you are given a tiny duration to dodge, as indicated by the orange circles.

Reflux then shoves the sceptre directly into himself, greatly increasing his size and power. He uses two attacks, a sweeping claw or a fist slam. The claw you can see easily to dodge, and the fist slam is also quite easy to dodge. If the slam catches you, hover over the first claw and then drop (this will dodge the second claw he sweeps with occasionaly).
If you reach the Red Can before or just after the mines blow up and charge your fist while ascending Reflux's arm, you should comfortably take him down in 3 rounds.

The third phase is where you can get the Green Gem, I forgot where it was and how to get back, so I waste about two minutes on it. Oh well....

For the third boss, just use the Super-Helicopter power to ascend, and try not to get too much by his shouts. When you reach the top, grab the Orange Can and aim the rocket either side of Reflux to take this phase out.

Finally... Reflux grows a pair of wings and you're in that flying contraption from the third part of this level. Shoot the shield on his back whilst stopping to shoot the red orbs he fires. Once the shield is down, hit the exposed sceptre and Reflux will spurt out Hoodlums, take out as many of these as you can with your bombs to prevent him from healing too much. After repeating this a few times, Reflux will turn into crystal and shatter. Andre will spurt out and beg for mercy. You should know what to Black Lums by now. Do it and watch the ending.