Bumpy is a French action puzzle game. The player controls the movements of a bumping head and how high it jumps. The goal is to collect every item on the level to make the passage to the next level appear. Some items are worth bonus points, others are used to deal with obstacles, like water droplets for extinguishing burning platforms, keys to unlock doors (some require more than one key), or hammers to destroy walls. The game has 100 levels and they can be played either sequentially or in random order.
The game includes a two-player mode (hotseat) and a level editor (not on the Amstrad CPC cassette edition though).