Bakugan red translucent hydranoid set 3 rare unicorn plus purchases 2 clear

Product code: Bakugan red translucent hydranoid set 3 rare unicorn plus purchases 2 clear
You purchases get these hard to find bakugan. Plus the battle brawler mat. Smoke free home. All great except I cannot get the head of the last pic open and I don't want to force it.