Does anyone have any tips for beating Shinra at Sphere Break and getting the Lady Luck dress sphere? I'm totally stuck and can only seem to make about 35-40 coins, no where near 50 :(

Any advice or tactics i should use? Thanks.

Try doing consistent combos of the same numbers. For example, always use two coins to for your multiples. Each consequtive time you do a combo with the same quantity of coins, you get an addition bonus to your score. If you keep it up, the bonuses keep piling on until you're getting like 10 bonus points for the same 2 coin combo.

Thanks for the tip :D I managed to do it and got the 'Lady Luck' Dressphere :D