I have to agree with the other comments on the lock screen about it taking ages and being frustrating. but actually... I think thats made worse by the second joke (that the bunny can't reach the clover). it's the sudden realisation that theres no game here, just a prank; and thus there is no catharsis to the initial frustration of unlocking the experience. you come away feeling like you've just had your time wasted, and it verges on being mean rather than unlucky.
I really liked the rabbit sprite though. and the philosophical journey I've been on writing this feedback!!
nice work