I loved how they did metalhead and him knowing how the turtles would think, but they did not do what the new toon did, take each other's weapons and fight him. don just used his comlink to short circuit.
I loved how the turtles got turtle pox and april had to care for them and the metalhead cared for them
krang screwed up with having the turtles taken so he could destroy them, he always ruins a perfect chance to finish them off.
shredder again nearly found their lair.
I loved the fight again and metalhead even talked in krang's voice and I loved how it got confused a lot.