I had a crack at this to, Im stuck on 8 questions which is really annoying me.
the ones I'm stuck on are

Across:
1. The only thing I could think of besides constructicons is decepticons but it doesn't line up with the answer to 2 down
12. I dont know the japanese names for the various convoys well enough but if my answers to 2 down and 7 down are correct then it starts with s and ends in r.
25. Dont have a clue
33. Cant work this one out either
34. same as the previous 2

Down:
13. I was thinking animated but it doesn't fit
23. No idea
32. AS for jetfires accent I cant think of anything

The ones your missing are

Across

19 is dirge

Down:

2 is omega supreme
7 is micromasters
8 is hate plague
18 is mustang