Glad I was not the only one, there were a lot of other images in that film, which were not scary as such, but were somewhat of a shock/disturbing.
The shot of vaders head, unhelmeted
Hans Torture and then freezing, especially when the slab hits the ground.
I also read somewhere that Bossk toys used to scare kids in the stores, I was surprised by this, especially because I thought the original vintage figure looked kind of hilarious compared to the actual alien. That's just me though.