I would highly suggest Trauma Center for gamer perspective... the 2nd one was MADE to be played at 2... only trauma i didnt get XS all the operations...
for anything else : Mario N Sonic is really good, WarioWare is good too and i recommand Fire Emblem if you loves tactics rpg + FF Chocobo dungeon is actually really good... mid story - excellent gameplay... really tactics like but...look for trailers..
If you think you're gaming too much, Game even more !







