Season 1
Ep.01. More Than Meets The Eye - Part 1
Decepticon symbol on Ratchet
Ep.03. More Than Meets The Eye - Part 3
Decepticon symbol on the Optimus trailer
Autobot symbol on Soundwave
Ep.07. Fire In The Sky
Two colors for the Skyfire's symbol
Ep.09. Fire On The Mountain
Two colors for the Ravage's symbol
Other...
In some episodes,
Spike has superhuman skills, like in
Ep.03. More Than Meets The Eye - Part 3, where he drops the
Starscream's laser through a stone...
... in
Ep.12. The Ultimate Doom - Part 2...
... in
Ep.13. The Ultimate Doom - Part 3, where he lifts the heavy Optimus gun and shoots safely...
A rare image:
Shockwave with two hands (
Ep.06. Divide And Conquer)...
... and two human hands for
Doctor Arkeville (
Ep.14. Countdown To Extinction)...
The G1 episodes show many duplicates... and the theme song isn't an exception (0:17)...
To be continued...