there seem to be minor bugs in stage 2
when the game move from stage 1 to stage 2, the function keys are shifted downward and left, right and return key cannot be used. the issue was solved by restarting the app. in stage 2, the vending machine was blocked by the adarea. a big white rectangle extended from the ad area and blocked the pick up box so i cannot touch the object inside. i solved the problem by turning off the internet so that the ad wont show.