>>8853189He is literally Megatron, but powered up. That's the first layer of his appeal. The second layer, it's that he's voiced by Leonard Nimoy in the 86 movie, and I'm a bit of a Stark Trek fan. Third layer, after getting stabbed in the back and left for dead, he's had enough shit and refuses to even tolerate traitorous swine like Starscream anymore. Fourth layer, he has the balls to try and double-cross Unicron of all people.
Then we come to the fifth layer, the best layer, he becomes completely batshit after the movie, while retaining most of his competence and power. He's unpredictable and he's so batshit that it's incurable and even spread to a whole fucking planet when they tried to lobotomize him with it. He is the absolute maddest of mad lads, the most legendary of legends, the only Decepticon fucked in the head enough to regularly beat his number two and use his troops like fodder, and he mostly got away with it.
In short, he's the most entertaining transformer to grace this franchise and he fucking deserves a toy that's not dogshit.