Stages can be selected to start playing once the level has been initially cleared.
In three days, the top level was cleared.
Classic music from both series is available in the gallery once all levels in a category are cleared.
When a level is cleared, it switches its color along with all the screen.
Once the level is cleared of enemies, the player continues to the next.
When a level is cleared, a new car is added to the pit, and bonus points are scored.
In all fourteen levels had been cleared and that was not a bad day's work.
When the level is cleared, the player will proceed to the next stage.
Players can choose freely among the three stage types at any time, but each level may only be cleared once.
Each level must be cleared in a certain amount of time.