Games like Mega Man and Battletoads are hardcore, but they do look so very casual.
Mario is definitely, definitely a casual game yet it gets hardcore later on.
Something can be both casual and hardcore, since they're not co-dependent.
Kimi wa ne tashika ni ano toki watashi no soba ni ita
Itsudatte itsudatte itsudatte
Sugu yoko de waratteita
Nakushitemo torimodosu kimi wo
I will never leave you