Rule 34 Dev - 1990s_(style) 1girl 2boys angry animated animated_gif armor battle beam black_hair choujin_gakuen_gowcaizer creepy energy_blast giant giantess gowcaizer kaiza_isato kash_gyustan lowres monster_girl multiple_boys omni_exist oobari_masami power_suit red_eyes retro_artstyle shigure_kyosuke transformation yoshinari_you|8915832783