Radiant Defense - Mission 7 (without packs / iaps)

No one makes a guide without packs, so I made one. Things to note for this walkthrough: 1) I have only beat the Mission 1-Star. I got perfect lives before the final boss, but I just simply can&beat the last boss. 2) The last boss eats away 10 of your lives if he gets through. Therefore you must at least maintain 11 lives before you reach Wave 45. 3) Updated 15 Jun: Finally I made my 3rd attempt (using this route) and I have achieved 3 Stars. Basically you could follow the steps in this video till wave 25, then stop building anymore toxic towers shown in the video. Instead, build Gauss Guns all the way(at the rectangular modules where I built them) until the final wave. At the last wave, I have: 1 cannon (master) 1 toxic tower (elite/master, I forgot) 1 turret (elite/master, I forgot) 1 tesla (2nd upgrade/2 dots) 1 slow tower (master) 11 gauss guns (10 master, 1 advance) If, somehow, you are still unable to clear the last boss, you can try building more tesla along the path by selling off the Neutron Mega Blast(selling off NMB to have more teslas/gauss guns do generates more damage output), and remember to sell towers that are no longer in range. Good Luck! 4)Updated Aug: I made this guide before the developer starts altering the way the towers target its target. Since I uploaded this video, they have changed their towers targeting system twice, and I realised now they tend to focus fire very efficiently compared to last time. The new system of FFing efficiently is bad...