This deck works for 30 and 40. 0 losses on 30, 2 on 40 for the following reasons: 1) Joey will use Stamping Destruction to get rid of Breeding Machine (BM) if you give him BM while there are no other spells/traps on Joeys side. Give Joey BM while he has two s/t cards or risk if he has 0/1. 2) Set Straight Flush on 2nd last turn only. He will destroy it with a set Stamping Destruction otherwise. Difference between Hopper and Unhappy Girl: If locked by UG, Joey will activate Miyabi. He WON'T use it against Hopper (100% sure) since Hopper won't lock anything. Red-Eyes will attack Hopper, remaining LP don't care. So you need to activate Surprise before Joey can summon Red-Eyes. Luckily Never had a problem to do so.