_Bumps_ is a physics-based puzzle game. The objective is to drag and drop an
anthropomorphic sphere, or “bump” as the game calls it, with the mouse making
it bounce and roll on obstacles scattered around the screen, collecting in its
path all the necessary keys to release the other fellow balls locked at the
top. The bumps were captured by evil aliens and stored as food inside a force
field.

Keys can only be collected by bumps that match their color. Besides the keys,
there are other items placed on the levels that alter the sphere behavior and
create puzzle situations. The plus sign increases the size of the ball, and
the minus sign makes them smaller. The speed power makes the bump go faster
for a few seconds. The reverse power inverts gravity, making the sphere go
upside-down and behave accordingly.

The game was released as shareware and also commercially, the commercial
version includes a colour blind mode.