Marvel Heroes is a game that's gotten classified by the small HyperScan community as one of the better games for the system. You play as a variety of different Marvel heroes (I've got a limited number of cards, but I've been able to play as the Incredible Hulk, Daredevil, Captain America, the Human Torch, and Thing) through a variety of 2D scrolling levels against sundry baddies. There's not one overarching storyline, as far as I can tell, but rather a series of shorter storylines resulting in three-level mini games (taking about 15 to 20 minutes to beat, depending on your skill level).
Graphics are pretty decent. The backgrounds are detailed and crisp, though the characters look pretty pixelated. The Human Torch has some neat flame effects, though. The music is appropriately dramatic super heroey.
If you want replay value, you'll want to stock up on cards. Area mods and story missions provide new levels and villains, and as each one provides a half hour or less of gaming, just a handful won't take you very far. Having plenty of characters cards is worthwhile, too. The various heroes are differentiated enough that you'll want to play all of them, so you can experience Hulk's huge earth-pounding jump, Daredevil's swinging, etc.
I agree with others who've said this is one of the better HyperScan games--it's a lot of fun to play superhero and bash up baddies with the kind of all-star roster available. (I'll be posting lists of all the available cards for HyperScan's games in the near future, so keep an eye out!)
