Several obstacles hinder the birds fly upwards including steam-beams, balloons and other birds. Most of these obstacles are normally indestructible on the players way up and have to be avoided at all costs or the bird will stop his ascent and fly down until he hits another rocket or is back on the ground. Power-ups scattered around the level including a helmet which allows the bird to destroy objects even on his way up and an umbrella which slows down his descent help the player to get the highest score possible. In order to score points, the bird on the other hand needs to collect seeds and destroy as many objects as possible. Bonus points are earned if the player hits the sewer entrance on his way down or performs a really high climb with just one rocket.