As MRRSN793 said: pause after levels to save time. But NOT AFTER LEVEL 27 (credit page). If you are paused when entering level 28, you can't reach the pause button because it is not visible... :(
This game is about walking around in plains, navigating around trees and campsites and occasionally there is even a battle. Very tedious and grinding. Add a few glitches and cumbersome save points for entertainment.
2/5 for the effort of making something more complex than pong.