The general objective of the game is to paddle a raft up a river, preventing it from flooding. The game consists of two main gameplay modes: solving a word-spelling puzzle on the “puzzle map”, and participating in a simple spelling test. The objective of the puzzle map is to collect letter tiles by walking over them in the correct order, spelling a suggested word.
The game consists of 101 such maps, gradually increasing in difficulty: the player will eventually have to avoid enemies (such as rhinoceroses and tigers), try not to fall into bottomless pits, and use various tools and vehicles to get to the desired letter.
Completion of a puzzle map section leads to a spelling test phase, where the player is asked to spell various words. If the player spells the word correctly, his raft will slightly advance. After having spelled several words correctly, the player will be able to advance to the next level.