Ratchet and Clank: Size Matters Tips

How to beat Otto Destruct easily!
This is for everybody having trouble beating the final boss with Ratchet at the last stage. What people don't realise is how powerful the laser tracer really is upgraded! Keep repeatedly going through Dayni Moon, Inside Clank, and Quodrona, as the enemies on those three places give very high amounts of XP (make sure on Dayni that you kill the sheep when they are transformed!), until your laser tracer is at V4 and upgraded to Optical Maser Array. It takes a long time but it's worth it! Once you have done this, you can beat Otto, if you are good at aiming with the laser, in about 15-20 seconds! (I did this just two days ago, so I know it works!)