Eren please, can't enjoy your birthday cake like normal children, "DEVOUR ALL TITANS!" Fine do whatever the hell you want Eren. - I just realized that the titan on that cake looks like the one that ate Eren's mom.
Attack on titan! This is what all the characters would do if they were trapped inside a glass box. <------ just to further prove Mikasa's fabulousity, she's the only one who managed to crack the glass. (And Levi lol)