The bananas you collect could be spent for in-game purchases just like power-ups and upgrades. If you need to attract more bananas or hold your gliding much longer, then there’s something you should be saving for. Completing all the achievements adds up to the challenge.
When you sync your favourite app to another device just like Banana Kong download on PC, all your levels and scores are saved in the Google’s cloud storage. This lets you carry on with the game anywhere with no hassle at all.