Hummer is an arcade racing game released by Sega in 2009.
[2][3] Two different variants of the cabinet feature two sets of controls side-by-side.
This enables co-op play between players on the same cabinet using the "Driver Change System", which swaps the person controlling the vehicle at checkpoints or after collisions.
Consequently, it is possible for up to 8 people to race at the same time, if the maximum of four 2-player machines are linked.
The boost meter is increased by driving through destructible obstacles and landing controlled jumps.