The entirely of the first game was based on drugs to lure some pillmunchers to play the game. I thought it can even expand to the zone modes like Ecstacy for classic zone, Speed for a Voxel Rush-style endless, and Lysergine (LSD) for a wierd, Ace Combat-like asteroid -dodging simulator. A special one call Crystal/Morphine for a frustratingly-hardcore race series based on Fusion and F-Zero race tracks.