A Transformers universe where illegal experiments under the human government’s nose is more common than anticipated.
The reader was a human that died in the real world and woke up as a robot. They realize quickly that the mind of the previous human experiment died and was replaced with their consciousness. But instead of panicking, the reader goes with whatever the scientists have in store for them before devising a plan of escape.
When they did escape, they decided to blow up the lab, for the sake of being petty and vengeful. Who in the right mind experiments with living, thinking beings? Surely, no one deserves such cruelty. So the the base, the intel –and maybe some of the scientists that got caught inside– gets blown to bits, before they leave and fly away into the night, never to be remembered again by human kind.
(This was made with a Gundam/Mecha!Reader in mind, gender is up to you.)