This is a sequel and, on some levels, remake of the original Space Taxi.

In this game, like the original, you pick up passengers and drop them at the
requested pads or take them out of the level to the next. In this game,
however, you also have bonuses that float up on balloons like more fuel,
better fuel efficiency, spare cabs, money, cab repairs, etc. Your passengers
also vary like humans (male, female, old), aliens, robots, etc. There are 30
levels total spread out over 3 planets.

Some levels have weather conditions and every level has a secret bonus hidden
somewhere.

Space Taxi 2