GUYS!!! Date ideas for rainy days?

I want a guys opinion on date ideas! My bf plan to hang out but it's supposed to rain! And I don't wanna do something that's too cute! Afterall he is a guy so I know they aren't a huge fan of cute cute stuff! Haha(: and even stuff to do when it's not raining but I'm looking for rainy day stuff!!! We are sick of movies and wanna do something fun, idt he is a fan of the wii either.... :/ I'm 16 and he's 18