Hi folks, I figured I'd show you some ideas for level selection since there is a bit whopping bonus for being able to REvisit other locations after visiting them before. Here are some game videos to show off some ideas.
Clash at Demonhead (Interlinking Lane Selection)
Mega-Man (Select from a set of boxes)
Contra Hard Corps (Choose in-story interactive dialog choice)
Where in the World is Carmen Sandiego (Select from a given lost of travel options)
Castlevania 2: Simon's Quest (Completely connected world, no selection, free roaming allowed)