GBA- Sonic the Hedgehog

The game is divided into 7 zones that have 3 acts each (with the exception of Final Zone, which only has a single act.) The goal of the first 2 acts is to simply get to the end and run past the sign post. However, the third act always has a boss battle at the end. (Final Zone's single act is a boss battle). When running through the stages, there are various obstacles such as Badniks, Spikes, Lava and Water. Also, there are rings scattered throughout the stages. If Sonic gets hit without any rings, he loses a life. However, if Sonic gets hit while holding on to at least a single ring, he won't lose a life (he will however lose all of the rings he is currently holding). If Sonic collects 100 rings, he gains an extra life.