iphone/android app

Project Description:
Need to see previous games you have developed. Will need graphics and coding to be provided.
Game is started by lifting phone in air as if flipping a coin. The objective is displayed in bottom left hand corner as either Heads or tails (changes randomly). A number of coins land on the screen in random heads/tails order. Objective is for the user to tap as many heads (if it says heads) or tails (if it says tails) on the screen before the clock runs out. Points are provided for correct hits. Points allow user to buy multiple rounds of the same objective (i.e heads three times in a row to get quicker results).
As the coins are tapped they disappear and when all objective hits are complete if time has not run out then you can flip again and get another round of coins to choose from. This will only work if all objective coins are gone

Player can choose three modes of playing easy, challenge me, wow this is hard, gonna beat this! (these options will have variables in the time, points required and number of coins)

Has levels that are unlocked with points with the following hierarchy of difficulty. Points accumulate so can play easy level multiple times to reach next level.
Level 1 - coins are equally spaced on grid layout
Level 2 - coins are equally spaced on grid layout but another line of coins is added
Level 3 - Coins are slightly out of line with grid
Level 4 - coins are very messy layout
Level 5 - There are items that are not coins on the screen and if you tap them the phone vibrates (which slows you down)
Level 6 - More coins are crammed onto the screen in haphazard way and some lie on top of others. Need to swipe them to move them before you can tap the objective head or tails coin
Level 7 - More coins are crammed onto the screen in haphazard way and some lie on top of others. Need to swipe them to move them before you can tap the objective head or tails coin. If swipe too hard coins head off screen and can't be recovered.
Level 8 - Can shake the phone to redistribute the coins to spread them out to make easier to tap
Level 9 - coins need to be tapped in a row of three or more to win bonus points. can be horizontal/ vertical or diagonal
Level 10 - no coins on the screen, they flip down from top of screen one a time and need to be tapped before they disappear off screen.
Level 11 - Same as last level but multiple coins come at once
Level 12 - Same as last two levels but more volume of coins and look alike items come in too that if hit vibrate the phone.

Need the number of points required to move to another level to be customisable by myself after the build is complete and it is tested to see how easy/hard it is.