I have no complaints about Rocket's behavior.
The OS boot animation is good. If this is shown in a part of the UI, it may be misunderstood as some kind of operation is required, so it may be better to show this on the whole screen or include a message like "Please Wait".
However, I am disgusted by the sneering nature of the game's description. This is because I feel that such text is written for self-preservation, not for the players.