Feedback:
1. spelling conveyor instead of conveyer
2. speed of the conveyor belt is different for the frog than for the boxes (frog moves faster, which is odd)
3. should make the box frequency increase over time, rather than just the conveyor belt speed
4. not clear what the watermelon does or if it has a sound effect
5. scoring seems to be related to when the frog passes over the box, which allows for players to go back and forth over to make the score increase, if you don't want this you can increase the counter when the box is destroyed off screen.