Ghost Squad has party modes with 2-player co-op. Lotsa fun. The zapper is actually very good, and for $20 with the Link game, it's a good deal.Originally Posted by illmasaki
I'll probably get a Nyko Perfect Shot as a second gun. This has just a gun frame/trigger for the wiimote, and the nunchuk plugs into the base of the handle--you hold it separately in your other hand. You can use it in games that need separate movement of the nunchuk.
Another gun option I've seen for sale on some Asian sites is like the Perfect Shot, but the nunchuck is in a small holder that can optionally slide onto the rear of the gun (so it is like the Zapper), or slide off and be held separately in your other hand.