Funny thing, I can play Shadow of Mordor with no lag at all... but Strikeforce Kitty 2 is such a graphical masterpiece that my computer can't handle it!
Either make archers shoot at certain spots or make then "arrow priority" it's impossible to get the 3 stars when archers spawn at the same time as other units and will fire at random
Got to congratulate you, developer... first game in YEARS that made me grab a pen and paper to complete! I have not been this challenged since The Dig!
I used to like this game, but the jumps are getting so tight that your lack of control over the jump turns it into a torture rather then a smooth running/find the path game
Want to get the hard badge quickly? Farm Yellows and use the ability to turn the tiles into gold, easily 1k each run so you can buy everything and be full of double damage every single round
For those having trouble with the last boss: fully level your rogue and farm at stage 11 rogue single run, it's the fastest way to go to the boss with fully equipped allies + full runes, and the boss gets fairly easy
For those having trouble... get special wave and combo first, once it's maxed you can get the medium badge with 1 or 2 shots, easily... Just make sure you hit at least 3 ships each shot, and wait until there are no more bullets flying to fire the second one
 "Zeus Age"){kind=icon}
 "Frozen Islands"){kind=icon}
 "Don't Escape 2"){kind=icon}
 "Tactical Assassin 2"){kind=icon}
 "Strikeforce Kitty 2"){kind=icon}
 "Besieged 2 Infinite"){kind=icon}
 "Inferno Legend"){kind=icon}
 "The Gate"){kind=icon}
 "Mu Complex : Episode One"){kind=icon}
 "Run 3"){kind=icon}
 "Running Fred"){kind=icon}
 "Hook"){kind=icon}
 "oO"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "Hippolyta"){kind=icon}
 "Mighty Knight"){kind=icon}
 "10 More Bullets"){kind=icon}
 "Experimental Shooter 2"){kind=icon}
You do not need to keep it. Just collect it once, it will be added to the page. You can then sell it, use it to upgrade other cards, etc.