in progress:

unfinished:

game should start on title
turtle should jump towards tap
cloud should rise into game mode
clouds should have 2 images and wrap
game mode should descend clouds quickly
game mode should bring turtle up
interface should appear
turtle should jump towards tap
turtle x movement should scroll clouds
turtle y movement should go up then fall
turtle landing on cloud should change cloud colour
birds should appear
birds should move
birds should oscillate
birds should have strategy behaviors available
turtle dev enemies should function
controllers should manage enemy appearance
turtle should flip
clouds should bounce
feathers should drop
feathers should redrop from closest bird who has not dropped recent feather height

finished: