Would be a better game if you made the text with something other than paint, there's a text function in MSPaint... At least use that, rating 0/5 for now.
tips and tricks:
bus goes at same speed whether you set the game to fast or slow, use it to your advantage.
if you buy bus stop, you can start the stage, and get double the bus units in that level, downside is you have more customers so they will probably fill up your shops too fast