the trick: try to keep your eyes centered in the white box and use your peripherals to keep your eyes on the whole screen: just keep your eyes on the blue but in the peripheral vision and from time to time try to check if you see a ball coming close to your ball-thats how i got the acheivement
i can teach how to get loads of money first fill up a whole page of random stuff stuff and one potion (doesn't matter) then go to the potion seller and buy a bunch of potions then get you highest paid weapon which means how much the weapon cost ex. (3000 for the weapon) then go to the filled page drink the potion get your weapon when you clicked the weapon and your holding it click the potion with the weapon then put the potion where the arrow points to the next page (bottom corner) and keep doing this you should see the potions dissaper and your inv. weight increase and then once your potions are all gone switch to the filled page then back to the second or third and you should see duplicated weapons and then you can sell then and remember you must be in the selling zone when duplicating then sell them and make a bunch of money like so everyone can see this :)
in my opinion i would kinda say this is a little better than pokemon and i have reasons why 1)it cost no pp 2)you have teleport systems and 3)you have like the best advanteges on this game how you lv so fast oh and also how it shows youhow much attack has gotten up but i still love pokemon 5/5
 "Particles"){kind=icon}
 "Arcuz (Full Version)"){kind=icon}
 "Slime Avoider"){kind=icon}
 "Realm of the Mad God"){kind=icon}
 "Platoonz"){kind=icon}
 "Mystic Guardians"){kind=icon}
 "Dragon Ball Fighting v2.0"){kind=icon}
 "Iron Realms"){kind=icon}
 "Fantasy Online"){kind=icon}
 "Madness Combat Defense"){kind=icon}
 "Effing Worms 2"){kind=icon}